From dc8aa7e9ad9b6c803084a854fd5847d341c46616 Mon Sep 17 00:00:00 2001 From: xile611 Date: Mon, 27 Oct 2025 10:58:06 +0800 Subject: [PATCH 1/4] fix: fix logisitic regression-line --- .../scatter-regression-line/logistic.ts | 14 ++++++++--- .../components/bar-regression-line/index.ts | 11 +++++--- .../scatter-regression-line/index.ts | 25 +++++++++++-------- .../scatter-regression-line/type.ts | 4 --- 4 files changed, 32 insertions(+), 22 deletions(-) diff --git a/packages/vchart-extension/__tests__/runtime/browser/test-page/scatter-regression-line/logistic.ts b/packages/vchart-extension/__tests__/runtime/browser/test-page/scatter-regression-line/logistic.ts index df935dec91..e3c781c592 100644 --- a/packages/vchart-extension/__tests__/runtime/browser/test-page/scatter-regression-line/logistic.ts +++ b/packages/vchart-extension/__tests__/runtime/browser/test-page/scatter-regression-line/logistic.ts @@ -409,9 +409,13 @@ const data = [ { name: 'dodge rampage', milesPerGallon: 32, cylinders: 4, horsepower: 84 }, { name: 'ford ranger', milesPerGallon: 28, cylinders: 4, horsepower: 79 }, { name: 'chevy s-10', milesPerGallon: 31, cylinders: 4, horsepower: 82 } -].filter(entry => { +].map(entry => { const delta = entry.horsepower - entry.milesPerGallon; - return delta > 100 || delta < 20; + + return { + ...entry, + tag: delta >= 80 || delta < -50 ? 0 : 1 + }; }); // 图表配置 @@ -421,7 +425,7 @@ const spec = { { type: 'scatter', xField: 'milesPerGallon', - yField: 'horsepower', + yField: 'tag', point: { state: { hover: { @@ -479,7 +483,9 @@ const spec = { }, orient: 'left', range: { min: 0 }, - type: 'linear' + type: 'linear', + min: 0, + max: 1 }, { title: { diff --git a/packages/vchart-extension/src/components/bar-regression-line/index.ts b/packages/vchart-extension/src/components/bar-regression-line/index.ts index c95b4a0e67..9c18d3d3b7 100644 --- a/packages/vchart-extension/src/components/bar-regression-line/index.ts +++ b/packages/vchart-extension/src/components/bar-regression-line/index.ts @@ -33,6 +33,11 @@ export function getBarRegressionLineConfig(config: Omit { const region = s.getRegion().getLayoutStartPoint(); + const start = s.getRegion().getLayoutStartPoint(); + const rect = s.getRegion().getLayoutRect(); + const yClamper = (y: number) => { + return y > start.y + rect.height ? start.y + rect.height : y < start.y ? start.y : y; + }; const data = s.getViewData().latestData; const fieldX = s.fieldX?.[0]; @@ -60,15 +65,15 @@ export function getBarRegressionLineConfig(config: Omit { const d = { [fieldX]: groups[c.x], [fieldY]: c.lower }; return { x: s.dataToPositionX(d) + region.x + halfBandWidth, - y: s.dataToPositionY(d) + region.y, - y1: s.dataToPositionY({ [fieldY]: c.upper }) + region.y + y: yClamper(s.dataToPositionY(d) + region.y), + y1: yClamper(s.dataToPositionY({ [fieldY]: c.upper }) + region.y) }; }) }); diff --git a/packages/vchart-extension/src/components/scatter-regression-line/index.ts b/packages/vchart-extension/src/components/scatter-regression-line/index.ts index 1e50de1d2a..3383e2d534 100644 --- a/packages/vchart-extension/src/components/scatter-regression-line/index.ts +++ b/packages/vchart-extension/src/components/scatter-regression-line/index.ts @@ -1,13 +1,10 @@ /** - * @description vchart 自定义组件，用于实现柱图、线图以及面积图的系列标签 - * @author zhangweixing + * @description 散点图回归线组件 + * @author kangxiaoting */ - -import { AbstractComponent } from '@visactor/vrender-components'; import { array, get, - isEmpty, regressionLinear, regressionLogistic, regressionLowess, @@ -63,7 +60,11 @@ export function getScatterRegressionLineConfig( // 必须存在散点图系列 if (series && series.length) { series.forEach(s => { - const region = s.getRegion().getLayoutStartPoint(); + const start = s.getRegion().getLayoutStartPoint(); + const rect = s.getRegion().getLayoutRect(); + const yClamper = (y: number) => { + return y > start.y + rect.height ? start.y + rect.height : y < start.y ? start.y : y; + }; const colorAttrOptions = s.getColorAttribute(); const groups = s.getSeriesKeys(); const data = s.getViewData().latestData; @@ -96,16 +97,18 @@ export function getScatterRegressionLineConfig( line: lineData.map((ld: Datum) => { const d = { [fieldX]: ld.x, [fieldY]: ld.y }; return { - x: s.dataToPositionX(d) + region.x, - y: s.dataToPositionY(d) + region.y + x: s.dataToPositionX(d) + start.x, + y: yClamper( + type === 'logisitc' ? start.y + rect.height * (1 - ld.y) : s.dataToPositionY(d) + start.y + ) }; }), area: confidenceData.map((c: Datum) => { const d = { [fieldX]: c.x, [fieldY]: c.lower }; return { - x: s.dataToPositionX(d) + region.x, - y: s.dataToPositionY(d) + region.y, - y1: s.dataToPositionY({ [fieldY]: c.upper }) + region.y + x: s.dataToPositionX(d) + start.x, + y: yClamper(s.dataToPositionY(d) + start.y), + y1: yClamper(s.dataToPositionY({ [fieldY]: c.upper }) + start.y) }; }) }); diff --git a/packages/vchart-extension/src/components/scatter-regression-line/type.ts b/packages/vchart-extension/src/components/scatter-regression-line/type.ts index 73fbee342e..b0b484cb62 100644 --- a/packages/vchart-extension/src/components/scatter-regression-line/type.ts +++ b/packages/vchart-extension/src/components/scatter-regression-line/type.ts @@ -6,10 +6,6 @@ export interface ScatterRegressionLineAttrs extends RegressionLineAttrs { * 多项式回归的阶数，仅当 type 为 polynomial 时有效 */ polynomialDegree?: number; - /** - * logisitc 回归时，打标字段对应的数据字段名称 - */ - logisiticLabelField?: string; } export interface ScatterRegressionLineSpec From 7fdc9a59d00315e51e09364b6d9cd03f8c88677f Mon Sep 17 00:00:00 2001 From: xile611 Date: Mon, 27 Oct 2025 11:42:09 +0800 Subject: [PATCH 2/4] fix: update demo about regression line --- .../scatter-regression-line/logistic.ts | 3332 ++++++++++++++--- 1 file changed, 2911 insertions(+), 421 deletions(-) diff --git a/packages/vchart-extension/__tests__/runtime/browser/test-page/scatter-regression-line/logistic.ts b/packages/vchart-extension/__tests__/runtime/browser/test-page/scatter-regression-line/logistic.ts index e3c781c592..af0579a4ba 100644 --- a/packages/vchart-extension/__tests__/runtime/browser/test-page/scatter-regression-line/logistic.ts +++ b/packages/vchart-extension/__tests__/runtime/browser/test-page/scatter-regression-line/logistic.ts @@ -3,429 +3,2918 @@ import { appendScatterRegressionLineConfig } from '../../../../../src/components import { default as VChart } from '@visactor/vchart'; const data = [ - { name: 'chevrolet chevelle malibu', milesPerGallon: 18, cylinders: 8, horsepower: 130 }, - { name: 'buick skylark 320', milesPerGallon: 15, cylinders: 8, horsepower: 165 }, - { name: 'plymouth satellite', milesPerGallon: 18, cylinders: 8, horsepower: 150 }, - { name: 'amc rebel sst', milesPerGallon: 16, cylinders: 8, horsepower: 150 }, - { name: 'ford torino', milesPerGallon: 17, cylinders: 8, horsepower: 140 }, - { name: 'ford galaxie 500', milesPerGallon: 15, cylinders: 8, horsepower: 198 }, - { name: 'chevrolet impala', milesPerGallon: 14, cylinders: 8, horsepower: 220 }, - { name: 'plymouth fury iii', milesPerGallon: 14, cylinders: 8, horsepower: 215 }, - { name: 'pontiac catalina', milesPerGallon: 14, cylinders: 8, horsepower: 225 }, - { name: 'amc ambassador dpl', milesPerGallon: 15, cylinders: 8, horsepower: 190 }, - { name: 'citroen ds-21 pallas', milesPerGallon: 0, cylinders: 4, horsepower: 115 }, - { name: 'chevrolet chevelle concours (sw)', milesPerGallon: 0, cylinders: 8, horsepower: 165 }, - { name: 'ford torino (sw)', milesPerGallon: 0, cylinders: 8, horsepower: 153 }, - { name: 'plymouth satellite (sw)', milesPerGallon: 0, cylinders: 8, horsepower: 175 }, - { name: 'amc rebel sst (sw)', milesPerGallon: 0, cylinders: 8, horsepower: 175 }, - { name: 'dodge challenger se', milesPerGallon: 15, cylinders: 8, horsepower: 170 }, - { name: "plymouth 'cuda 340", milesPerGallon: 14, cylinders: 8, horsepower: 160 }, - { name: 'ford mustang boss 302', milesPerGallon: 0, cylinders: 8, horsepower: 140 }, - { name: 'chevrolet monte carlo', milesPerGallon: 15, cylinders: 8, horsepower: 150 }, - { name: 'buick estate wagon (sw)', milesPerGallon: 14, cylinders: 8, horsepower: 225 }, - { name: 'toyota corona mark ii', milesPerGallon: 24, cylinders: 4, horsepower: 95 }, - { name: 'plymouth duster', milesPerGallon: 22, cylinders: 6, horsepower: 95 }, - { name: 'amc hornet', milesPerGallon: 18, cylinders: 6, horsepower: 97 }, - { name: 'ford maverick', milesPerGallon: 21, cylinders: 6, horsepower: 85 }, - { name: 'datsun pl510', milesPerGallon: 27, cylinders: 4, horsepower: 88 }, - { name: 'volkswagen 1131 deluxe sedan', milesPerGallon: 26, cylinders: 4, horsepower: 46 }, - { name: 'peugeot 504', milesPerGallon: 25, cylinders: 4, horsepower: 87 }, - { name: 'audi 100 ls', milesPerGallon: 24, cylinders: 4, horsepower: 90 }, - { name: 'saab 99e', milesPerGallon: 25, cylinders: 4, horsepower: 95 }, - { name: 'bmw 2002', milesPerGallon: 26, cylinders: 4, horsepower: 113 }, - { name: 'amc gremlin', milesPerGallon: 21, cylinders: 6, horsepower: 90 }, - { name: 'ford f250', milesPerGallon: 10, cylinders: 8, horsepower: 215 }, - { name: 'chevy c20', milesPerGallon: 10, cylinders: 8, horsepower: 200 }, - { name: 'dodge d200', milesPerGallon: 11, cylinders: 8, horsepower: 210 }, - { name: 'hi 1200d', milesPerGallon: 9, cylinders: 8, horsepower: 193 }, - { name: 'datsun pl510', milesPerGallon: 27, cylinders: 4, horsepower: 88 }, - { name: 'chevrolet vega 2300', milesPerGallon: 28, cylinders: 4, horsepower: 90 }, - { name: 'toyota corona', milesPerGallon: 25, cylinders: 4, horsepower: 95 }, - { name: 'ford pinto', milesPerGallon: 25, cylinders: 4, horsepower: 0 }, - { name: 'volkswagen super beetle 117', milesPerGallon: 0, cylinders: 4, horsepower: 48 }, - { name: 'amc gremlin', milesPerGallon: 19, cylinders: 6, horsepower: 100 }, - { name: 'plymouth satellite custom', milesPerGallon: 16, cylinders: 6, horsepower: 105 }, - { name: 'chevrolet chevelle malibu', milesPerGallon: 17, cylinders: 6, horsepower: 100 }, - { name: 'ford torino 500', milesPerGallon: 19, cylinders: 6, horsepower: 88 }, - { name: 'amc matador', milesPerGallon: 18, cylinders: 6, horsepower: 100 }, - { name: 'chevrolet impala', milesPerGallon: 14, cylinders: 8, horsepower: 165 }, - { name: 'pontiac catalina brougham', milesPerGallon: 14, cylinders: 8, horsepower: 175 }, - { name: 'ford galaxie 500', milesPerGallon: 14, cylinders: 8, horsepower: 153 }, - { name: 'plymouth fury iii', milesPerGallon: 14, cylinders: 8, horsepower: 150 }, - { name: 'dodge monaco (sw)', milesPerGallon: 12, cylinders: 8, horsepower: 180 }, - { name: 'ford country squire (sw)', milesPerGallon: 13, cylinders: 8, horsepower: 170 }, - { name: 'pontiac safari (sw)', milesPerGallon: 13, cylinders: 8, horsepower: 175 }, - { name: 'amc hornet sportabout (sw)', milesPerGallon: 18, cylinders: 6, horsepower: 110 }, - { name: 'chevrolet vega (sw)', milesPerGallon: 22, cylinders: 4, horsepower: 72 }, - { name: 'pontiac firebird', milesPerGallon: 19, cylinders: 6, horsepower: 100 }, - { name: 'ford mustang', milesPerGallon: 18, cylinders: 6, horsepower: 88 }, - { name: 'mercury capri 2000', milesPerGallon: 23, cylinders: 4, horsepower: 86 }, - { name: 'opel 1900', milesPerGallon: 28, cylinders: 4, horsepower: 90 }, - { name: 'peugeot 304', milesPerGallon: 30, cylinders: 4, horsepower: 70 }, - { name: 'fiat 124b', milesPerGallon: 30, cylinders: 4, horsepower: 76 }, - { name: 'toyota corolla 1200', milesPerGallon: 31, cylinders: 4, horsepower: 65 }, - { name: 'datsun 1200', milesPerGallon: 35, cylinders: 4, horsepower: 69 }, - { name: 'volkswagen model 111', milesPerGallon: 27, cylinders: 4, horsepower: 60 }, - { name: 'plymouth cricket', milesPerGallon: 26, cylinders: 4, horsepower: 70 }, - { name: 'toyota corona hardtop', milesPerGallon: 24, cylinders: 4, horsepower: 95 }, - { name: 'dodge colt hardtop', milesPerGallon: 25, cylinders: 4, horsepower: 80 }, - { name: 'volkswagen type 3', milesPerGallon: 23, cylinders: 4, horsepower: 54 }, - { name: 'chevrolet vega', milesPerGallon: 20, cylinders: 4, horsepower: 90 }, - { name: 'ford pinto runabout', milesPerGallon: 21, cylinders: 4, horsepower: 86 }, - { name: 'chevrolet impala', milesPerGallon: 13, cylinders: 8, horsepower: 165 }, - { name: 'pontiac catalina', milesPerGallon: 14, cylinders: 8, horsepower: 175 }, - { name: 'plymouth fury iii', milesPerGallon: 15, cylinders: 8, horsepower: 150 }, - { name: 'ford galaxie 500', milesPerGallon: 14, cylinders: 8, horsepower: 153 }, - { name: 'amc ambassador sst', milesPerGallon: 17, cylinders: 8, horsepower: 150 }, - { name: 'mercury marquis', milesPerGallon: 11, cylinders: 8, horsepower: 208 }, - { name: 'buick lesabre custom', milesPerGallon: 13, cylinders: 8, horsepower: 155 }, - { name: 'oldsmobile delta 88 royale', milesPerGallon: 12, cylinders: 8, horsepower: 160 }, - { name: 'chrysler newport royal', milesPerGallon: 13, cylinders: 8, horsepower: 190 }, - { name: 'mazda rx2 coupe', milesPerGallon: 19, cylinders: 3, horsepower: 97 }, - { name: 'amc matador (sw)', milesPerGallon: 15, cylinders: 8, horsepower: 150 }, - { name: 'chevrolet chevelle concours (sw)', milesPerGallon: 13, cylinders: 8, horsepower: 130 }, - { name: 'ford gran torino (sw)', milesPerGallon: 13, cylinders: 8, horsepower: 140 }, - { name: 'plymouth satellite custom (sw)', milesPerGallon: 14, cylinders: 8, horsepower: 150 }, - { name: 'volvo 145e (sw)', milesPerGallon: 18, cylinders: 4, horsepower: 112 }, - { name: 'volkswagen 411 (sw)', milesPerGallon: 22, cylinders: 4, horsepower: 76 }, - { name: 'peugeot 504 (sw)', milesPerGallon: 21, cylinders: 4, horsepower: 87 }, - { name: 'renault 12 (sw)', milesPerGallon: 26, cylinders: 4, horsepower: 69 }, - { name: 'ford pinto (sw)', milesPerGallon: 22, cylinders: 4, horsepower: 86 }, - { name: 'datsun 510 (sw)', milesPerGallon: 28, cylinders: 4, horsepower: 92 }, - { name: 'toyouta corona mark ii (sw)', milesPerGallon: 23, cylinders: 4, horsepower: 97 }, - { name: 'dodge colt (sw)', milesPerGallon: 28, cylinders: 4, horsepower: 80 }, - { name: 'toyota corolla 1600 (sw)', milesPerGallon: 27, cylinders: 4, horsepower: 88 }, - { name: 'buick century 350', milesPerGallon: 13, cylinders: 8, horsepower: 175 }, - { name: 'amc matador', milesPerGallon: 14, cylinders: 8, horsepower: 150 }, - { name: 'chevrolet malibu', milesPerGallon: 13, cylinders: 8, horsepower: 145 }, - { name: 'ford gran torino', milesPerGallon: 14, cylinders: 8, horsepower: 137 }, - { name: 'dodge coronet custom', milesPerGallon: 15, cylinders: 8, horsepower: 150 }, - { name: 'mercury marquis brougham', milesPerGallon: 12, cylinders: 8, horsepower: 198 }, - { name: 'chevrolet caprice classic', milesPerGallon: 13, cylinders: 8, horsepower: 150 }, - { name: 'ford ltd', milesPerGallon: 13, cylinders: 8, horsepower: 158 }, - { name: 'plymouth fury gran sedan', milesPerGallon: 14, cylinders: 8, horsepower: 150 }, - { name: 'chrysler new yorker brougham', milesPerGallon: 13, cylinders: 8, horsepower: 215 }, - { name: 'buick electra 225 custom', milesPerGallon: 12, cylinders: 8, horsepower: 225 }, - { name: 'amc ambassador brougham', milesPerGallon: 13, cylinders: 8, horsepower: 175 }, - { name: 'plymouth valiant', milesPerGallon: 18, cylinders: 6, horsepower: 105 }, - { name: 'chevrolet nova custom', milesPerGallon: 16, cylinders: 6, horsepower: 100 }, - { name: 'amc hornet', milesPerGallon: 18, cylinders: 6, horsepower: 100 }, - { name: 'ford maverick', milesPerGallon: 18, cylinders: 6, horsepower: 88 }, - { name: 'plymouth duster', milesPerGallon: 23, cylinders: 6, horsepower: 95 }, - { name: 'volkswagen super beetle', milesPerGallon: 26, cylinders: 4, horsepower: 46 }, - { name: 'chevrolet impala', milesPerGallon: 11, cylinders: 8, horsepower: 150 }, - { name: 'ford country', milesPerGallon: 12, cylinders: 8, horsepower: 167 }, - { name: 'plymouth custom suburb', milesPerGallon: 13, cylinders: 8, horsepower: 170 }, - { name: 'oldsmobile vista cruiser', milesPerGallon: 12, cylinders: 8, horsepower: 180 }, - { name: 'amc gremlin', milesPerGallon: 18, cylinders: 6, horsepower: 100 }, - { name: 'toyota carina', milesPerGallon: 20, cylinders: 4, horsepower: 88 }, - { name: 'chevrolet vega', milesPerGallon: 21, cylinders: 4, horsepower: 72 }, - { name: 'datsun 610', milesPerGallon: 22, cylinders: 4, horsepower: 94 }, - { name: 'maxda rx3', milesPerGallon: 18, cylinders: 3, horsepower: 90 }, - { name: 'ford pinto', milesPerGallon: 19, cylinders: 4, horsepower: 85 }, - { name: 'mercury capri v6', milesPerGallon: 21, cylinders: 6, horsepower: 107 }, - { name: 'fiat 124 sport coupe', milesPerGallon: 26, cylinders: 4, horsepower: 90 }, - { name: 'chevrolet monte carlo s', milesPerGallon: 15, cylinders: 8, horsepower: 145 }, - { name: 'pontiac grand prix', milesPerGallon: 16, cylinders: 8, horsepower: 230 }, - { name: 'fiat 128', milesPerGallon: 29, cylinders: 4, horsepower: 49 }, - { name: 'opel manta', milesPerGallon: 24, cylinders: 4, horsepower: 75 }, - { name: 'audi 100ls', milesPerGallon: 20, cylinders: 4, horsepower: 91 }, - { name: 'volvo 144ea', milesPerGallon: 19, cylinders: 4, horsepower: 112 }, - { name: 'dodge dart custom', milesPerGallon: 15, cylinders: 8, horsepower: 150 }, - { name: 'saab 99le', milesPerGallon: 24, cylinders: 4, horsepower: 110 }, - { name: 'toyota mark ii', milesPerGallon: 20, cylinders: 6, horsepower: 122 }, - { name: 'oldsmobile omega', milesPerGallon: 11, cylinders: 8, horsepower: 180 }, - { name: 'plymouth duster', milesPerGallon: 20, cylinders: 6, horsepower: 95 }, - { name: 'ford maverick', milesPerGallon: 21, cylinders: 6, horsepower: 0 }, - { name: 'amc hornet', milesPerGallon: 19, cylinders: 6, horsepower: 100 }, - { name: 'chevrolet nova', milesPerGallon: 15, cylinders: 6, horsepower: 100 }, - { name: 'datsun b210', milesPerGallon: 31, cylinders: 4, horsepower: 67 }, - { name: 'ford pinto', milesPerGallon: 26, cylinders: 4, horsepower: 80 }, - { name: 'toyota corolla 1200', milesPerGallon: 32, cylinders: 4, horsepower: 65 }, - { name: 'chevrolet vega', milesPerGallon: 25, cylinders: 4, horsepower: 75 }, - { name: 'chevrolet chevelle malibu classic', milesPerGallon: 16, cylinders: 6, horsepower: 100 }, - { name: 'amc matador', milesPerGallon: 16, cylinders: 6, horsepower: 110 }, - { name: 'plymouth satellite sebring', milesPerGallon: 18, cylinders: 6, horsepower: 105 }, - { name: 'ford gran torino', milesPerGallon: 16, cylinders: 8, horsepower: 140 }, - { name: 'buick century luxus (sw)', milesPerGallon: 13, cylinders: 8, horsepower: 150 }, - { name: 'dodge coronet custom (sw)', milesPerGallon: 14, cylinders: 8, horsepower: 150 }, - { name: 'ford gran torino (sw)', milesPerGallon: 14, cylinders: 8, horsepower: 140 }, - { name: 'amc matador (sw)', milesPerGallon: 14, cylinders: 8, horsepower: 150 }, - { name: 'audi fox', milesPerGallon: 29, cylinders: 4, horsepower: 83 }, - { name: 'volkswagen dasher', milesPerGallon: 26, cylinders: 4, horsepower: 67 }, - { name: 'opel manta', milesPerGallon: 26, cylinders: 4, horsepower: 78 }, - { name: 'toyota corona', milesPerGallon: 31, cylinders: 4, horsepower: 52 }, - { name: 'datsun 710', milesPerGallon: 32, cylinders: 4, horsepower: 61 }, - { name: 'dodge colt', milesPerGallon: 28, cylinders: 4, horsepower: 75 }, - { name: 'fiat 128', milesPerGallon: 24, cylinders: 4, horsepower: 75 }, - { name: 'fiat 124 tc', milesPerGallon: 26, cylinders: 4, horsepower: 75 }, - { name: 'honda civic', milesPerGallon: 24, cylinders: 4, horsepower: 97 }, - { name: 'subaru', milesPerGallon: 26, cylinders: 4, horsepower: 93 }, - { name: 'fiat x1.9', milesPerGallon: 31, cylinders: 4, horsepower: 67 }, - { name: 'plymouth valiant custom', milesPerGallon: 19, cylinders: 6, horsepower: 95 }, - { name: 'chevrolet nova', milesPerGallon: 18, cylinders: 6, horsepower: 105 }, - { name: 'mercury monarch', milesPerGallon: 15, cylinders: 6, horsepower: 72 }, - { name: 'ford maverick', milesPerGallon: 15, cylinders: 6, horsepower: 72 }, - { name: 'pontiac catalina', milesPerGallon: 16, cylinders: 8, horsepower: 170 }, - { name: 'chevrolet bel air', milesPerGallon: 15, cylinders: 8, horsepower: 145 }, - { name: 'plymouth grand fury', milesPerGallon: 16, cylinders: 8, horsepower: 150 }, - { name: 'ford ltd', milesPerGallon: 14, cylinders: 8, horsepower: 148 }, - { name: 'buick century', milesPerGallon: 17, cylinders: 6, horsepower: 110 }, - { name: 'chevroelt chevelle malibu', milesPerGallon: 16, cylinders: 6, horsepower: 105 }, - { name: 'amc matador', milesPerGallon: 15, cylinders: 6, horsepower: 110 }, - { name: 'plymouth fury', milesPerGallon: 18, cylinders: 6, horsepower: 95 }, - { name: 'buick skyhawk', milesPerGallon: 21, cylinders: 6, horsepower: 110 }, - { name: 'chevrolet monza 2+2', milesPerGallon: 20, cylinders: 8, horsepower: 110 }, - { name: 'ford mustang ii', milesPerGallon: 13, cylinders: 8, horsepower: 129 }, - { name: 'toyota corolla', milesPerGallon: 29, cylinders: 4, horsepower: 75 }, - { name: 'ford pinto', milesPerGallon: 23, cylinders: 4, horsepower: 83 }, - { name: 'amc gremlin', milesPerGallon: 20, cylinders: 6, horsepower: 100 }, - { name: 'pontiac astro', milesPerGallon: 23, cylinders: 4, horsepower: 78 }, - { name: 'toyota corona', milesPerGallon: 24, cylinders: 4, horsepower: 96 }, - { name: 'volkswagen dasher', milesPerGallon: 25, cylinders: 4, horsepower: 71 }, - { name: 'datsun 710', milesPerGallon: 24, cylinders: 4, horsepower: 97 }, - { name: 'ford pinto', milesPerGallon: 18, cylinders: 6, horsepower: 97 }, - { name: 'volkswagen rabbit', milesPerGallon: 29, cylinders: 4, horsepower: 70 }, - { name: 'amc pacer', milesPerGallon: 19, cylinders: 6, horsepower: 90 }, - { name: 'audi 100ls', milesPerGallon: 23, cylinders: 4, horsepower: 95 }, - { name: 'peugeot 504', milesPerGallon: 23, cylinders: 4, horsepower: 88 }, - { name: 'volvo 244dl', milesPerGallon: 22, cylinders: 4, horsepower: 98 }, - { name: 'saab 99le', milesPerGallon: 25, cylinders: 4, horsepower: 115 }, - { name: 'honda civic cvcc', milesPerGallon: 33, cylinders: 4, horsepower: 53 }, - { name: 'fiat 131', milesPerGallon: 28, cylinders: 4, horsepower: 86 }, - { name: 'opel 1900', milesPerGallon: 25, cylinders: 4, horsepower: 81 }, - { name: 'capri ii', milesPerGallon: 25, cylinders: 4, horsepower: 92 }, - { name: 'dodge colt', milesPerGallon: 26, cylinders: 4, horsepower: 79 }, - { name: 'renault 12tl', milesPerGallon: 27, cylinders: 4, horsepower: 83 }, - { name: 'chevrolet chevelle malibu classic', milesPerGallon: 17.5, cylinders: 8, horsepower: 140 }, - { name: 'dodge coronet brougham', milesPerGallon: 16, cylinders: 8, horsepower: 150 }, - { name: 'amc matador', milesPerGallon: 15.5, cylinders: 8, horsepower: 120 }, - { name: 'ford gran torino', milesPerGallon: 14.5, cylinders: 8, horsepower: 152 }, - { name: 'plymouth valiant', milesPerGallon: 22, cylinders: 6, horsepower: 100 }, - { name: 'chevrolet nova', milesPerGallon: 22, cylinders: 6, horsepower: 105 }, - { name: 'ford maverick', milesPerGallon: 24, cylinders: 6, horsepower: 81 }, - { name: 'amc hornet', milesPerGallon: 22.5, cylinders: 6, horsepower: 90 }, - { name: 'chevrolet chevette', milesPerGallon: 29, cylinders: 4, horsepower: 52 }, - { name: 'chevrolet woody', milesPerGallon: 24.5, cylinders: 4, horsepower: 60 }, - { name: 'vw rabbit', milesPerGallon: 29, cylinders: 4, horsepower: 70 }, - { name: 'honda civic', milesPerGallon: 33, cylinders: 4, horsepower: 53 }, - { name: 'dodge aspen se', milesPerGallon: 20, cylinders: 6, horsepower: 100 }, - { name: 'ford granada ghia', milesPerGallon: 18, cylinders: 6, horsepower: 78 }, - { name: 'pontiac ventura sj', milesPerGallon: 18.5, cylinders: 6, horsepower: 110 }, - { name: 'amc pacer d/l', milesPerGallon: 17.5, cylinders: 6, horsepower: 95 }, - { name: 'volkswagen rabbit', milesPerGallon: 29.5, cylinders: 4, horsepower: 71 }, - { name: 'datsun b-210', milesPerGallon: 32, cylinders: 4, horsepower: 70 }, - { name: 'toyota corolla', milesPerGallon: 28, cylinders: 4, horsepower: 75 }, - { name: 'ford pinto', milesPerGallon: 26.5, cylinders: 4, horsepower: 72 }, - { name: 'volvo 245', milesPerGallon: 20, cylinders: 4, horsepower: 102 }, - { name: 'plymouth volare premier v8', milesPerGallon: 13, cylinders: 8, horsepower: 150 }, - { name: 'peugeot 504', milesPerGallon: 19, cylinders: 4, horsepower: 88 }, - { name: 'toyota mark ii', milesPerGallon: 19, cylinders: 6, horsepower: 108 }, - { name: 'mercedes-benz 280s', milesPerGallon: 16.5, cylinders: 6, horsepower: 120 }, - { name: 'cadillac seville', milesPerGallon: 16.5, cylinders: 8, horsepower: 180 }, - { name: 'chevy c10', milesPerGallon: 13, cylinders: 8, horsepower: 145 }, - { name: 'ford f108', milesPerGallon: 13, cylinders: 8, horsepower: 130 }, - { name: 'dodge d100', milesPerGallon: 13, cylinders: 8, horsepower: 150 }, - { name: 'honda Accelerationord cvcc', milesPerGallon: 31.5, cylinders: 4, horsepower: 68 }, - { name: 'buick opel isuzu deluxe', milesPerGallon: 30, cylinders: 4, horsepower: 80 }, - { name: 'renault 5 gtl', milesPerGallon: 36, cylinders: 4, horsepower: 58 }, - { name: 'plymouth arrow gs', milesPerGallon: 25.5, cylinders: 4, horsepower: 96 }, - { name: 'datsun f-10 hatchback', milesPerGallon: 33.5, cylinders: 4, horsepower: 70 }, - { name: 'chevrolet caprice classic', milesPerGallon: 17.5, cylinders: 8, horsepower: 145 }, - { name: 'oldsmobile cutlass supreme', milesPerGallon: 17, cylinders: 8, horsepower: 110 }, - { name: 'dodge monaco brougham', milesPerGallon: 15.5, cylinders: 8, horsepower: 145 }, - { name: 'mercury cougar brougham', milesPerGallon: 15, cylinders: 8, horsepower: 130 }, - { name: 'chevrolet concours', milesPerGallon: 17.5, cylinders: 6, horsepower: 110 }, - { name: 'buick skylark', milesPerGallon: 20.5, cylinders: 6, horsepower: 105 }, - { name: 'plymouth volare custom', milesPerGallon: 19, cylinders: 6, horsepower: 100 }, - { name: 'ford granada', milesPerGallon: 18.5, cylinders: 6, horsepower: 98 }, - { name: 'pontiac grand prix lj', milesPerGallon: 16, cylinders: 8, horsepower: 180 }, - { name: 'chevrolet monte carlo landau', milesPerGallon: 15.5, cylinders: 8, horsepower: 170 }, - { name: 'chrysler cordoba', milesPerGallon: 15.5, cylinders: 8, horsepower: 190 }, - { name: 'ford thunderbird', milesPerGallon: 16, cylinders: 8, horsepower: 149 }, - { name: 'volkswagen rabbit custom', milesPerGallon: 29, cylinders: 4, horsepower: 78 }, - { name: 'pontiac sunbird coupe', milesPerGallon: 24.5, cylinders: 4, horsepower: 88 }, - { name: 'toyota corolla liftback', milesPerGallon: 26, cylinders: 4, horsepower: 75 }, - { name: 'ford mustang ii 2+2', milesPerGallon: 25.5, cylinders: 4, horsepower: 89 }, - { name: 'chevrolet chevette', milesPerGallon: 30.5, cylinders: 4, horsepower: 63 }, - { name: 'dodge colt m/m', milesPerGallon: 33.5, cylinders: 4, horsepower: 83 }, - { name: 'subaru dl', milesPerGallon: 30, cylinders: 4, horsepower: 67 }, - { name: 'volkswagen dasher', milesPerGallon: 30.5, cylinders: 4, horsepower: 78 }, - { name: 'datsun 810', milesPerGallon: 22, cylinders: 6, horsepower: 97 }, - { name: 'bmw 320i', milesPerGallon: 21.5, cylinders: 4, horsepower: 110 }, - { name: 'mazda rx-4', milesPerGallon: 21.5, cylinders: 3, horsepower: 110 }, - { name: 'volkswagen rabbit custom diesel', milesPerGallon: 43.1, cylinders: 4, horsepower: 48 }, - { name: 'ford fiesta', milesPerGallon: 36.1, cylinders: 4, horsepower: 66 }, - { name: 'mazda glc deluxe', milesPerGallon: 32.8, cylinders: 4, horsepower: 52 }, - { name: 'datsun b210 gx', milesPerGallon: 39.4, cylinders: 4, horsepower: 70 }, - { name: 'honda civic cvcc', milesPerGallon: 36.1, cylinders: 4, horsepower: 60 }, - { name: 'oldsmobile cutlass salon brougham', milesPerGallon: 19.9, cylinders: 8, horsepower: 110 }, - { name: 'dodge diplomat', milesPerGallon: 19.4, cylinders: 8, horsepower: 140 }, - { name: 'mercury monarch ghia', milesPerGallon: 20.2, cylinders: 8, horsepower: 139 }, - { name: 'pontiac phoenix lj', milesPerGallon: 19.2, cylinders: 6, horsepower: 105 }, - { name: 'chevrolet malibu', milesPerGallon: 20.5, cylinders: 6, horsepower: 95 }, - { name: 'ford fairmont (auto)', milesPerGallon: 20.2, cylinders: 6, horsepower: 85 }, - { name: 'ford fairmont (man)', milesPerGallon: 25.1, cylinders: 4, horsepower: 88 }, - { name: 'plymouth volare', milesPerGallon: 20.5, cylinders: 6, horsepower: 100 }, - { name: 'amc concord', milesPerGallon: 19.4, cylinders: 6, horsepower: 90 }, - { name: 'buick century special', milesPerGallon: 20.6, cylinders: 6, horsepower: 105 }, - { name: 'mercury zephyr', milesPerGallon: 20.8, cylinders: 6, horsepower: 85 }, - { name: 'dodge aspen', milesPerGallon: 18.6, cylinders: 6, horsepower: 110 }, - { name: 'amc concord d/l', milesPerGallon: 18.1, cylinders: 6, horsepower: 120 }, - { name: 'chevrolet monte carlo landau', milesPerGallon: 19.2, cylinders: 8, horsepower: 145 }, - { name: 'buick regal sport coupe (turbo)', milesPerGallon: 17.7, cylinders: 6, horsepower: 165 }, - { name: 'ford futura', milesPerGallon: 18.1, cylinders: 8, horsepower: 139 }, - { name: 'dodge magnum xe', milesPerGallon: 17.5, cylinders: 8, horsepower: 140 }, - { name: 'chevrolet chevette', milesPerGallon: 30, cylinders: 4, horsepower: 68 }, - { name: 'toyota corona', milesPerGallon: 27.5, cylinders: 4, horsepower: 95 }, - { name: 'datsun 510', milesPerGallon: 27.2, cylinders: 4, horsepower: 97 }, - { name: 'dodge omni', milesPerGallon: 30.9, cylinders: 4, horsepower: 75 }, - { name: 'toyota celica gt liftback', milesPerGallon: 21.1, cylinders: 4, horsepower: 95 }, - { name: 'plymouth sapporo', milesPerGallon: 23.2, cylinders: 4, horsepower: 105 }, - { name: 'oldsmobile starfire sx', milesPerGallon: 23.8, cylinders: 4, horsepower: 85 }, - { name: 'datsun 200-sx', milesPerGallon: 23.9, cylinders: 4, horsepower: 97 }, - { name: 'audi 5000', milesPerGallon: 20.3, cylinders: 5, horsepower: 103 }, - { name: 'volvo 264gl', milesPerGallon: 17, cylinders: 6, horsepower: 125 }, - { name: 'saab 99gle', milesPerGallon: 21.6, cylinders: 4, horsepower: 115 }, - { name: 'peugeot 604sl', milesPerGallon: 16.2, cylinders: 6, horsepower: 133 }, - { name: 'volkswagen scirocco', milesPerGallon: 31.5, cylinders: 4, horsepower: 71 }, - { name: 'honda Accelerationord lx', milesPerGallon: 29.5, cylinders: 4, horsepower: 68 }, - { name: 'pontiac lemans v6', milesPerGallon: 21.5, cylinders: 6, horsepower: 115 }, - { name: 'mercury zephyr 6', milesPerGallon: 19.8, cylinders: 6, horsepower: 85 }, - { name: 'ford fairmont 4', milesPerGallon: 22.3, cylinders: 4, horsepower: 88 }, - { name: 'amc concord dl 6', milesPerGallon: 20.2, cylinders: 6, horsepower: 90 }, - { name: 'dodge aspen 6', milesPerGallon: 20.6, cylinders: 6, horsepower: 110 }, - { name: 'chevrolet caprice classic', milesPerGallon: 17, cylinders: 8, horsepower: 130 }, - { name: 'ford ltd landau', milesPerGallon: 17.6, cylinders: 8, horsepower: 129 }, - { name: 'mercury grand marquis', milesPerGallon: 16.5, cylinders: 8, horsepower: 138 }, - { name: 'dodge st. regis', milesPerGallon: 18.2, cylinders: 8, horsepower: 135 }, - { name: 'buick estate wagon (sw)', milesPerGallon: 16.9, cylinders: 8, horsepower: 155 }, - { name: 'ford country squire (sw)', milesPerGallon: 15.5, cylinders: 8, horsepower: 142 }, - { name: 'chevrolet malibu classic (sw)', milesPerGallon: 19.2, cylinders: 8, horsepower: 125 }, - { name: 'chrysler lebaron town @ country (sw)', milesPerGallon: 18.5, cylinders: 8, horsepower: 150 }, - { name: 'vw rabbit custom', milesPerGallon: 31.9, cylinders: 4, horsepower: 71 }, - { name: 'maxda glc deluxe', milesPerGallon: 34.1, cylinders: 4, horsepower: 65 }, - { name: 'dodge colt hatchback custom', milesPerGallon: 35.7, cylinders: 4, horsepower: 80 }, - { name: 'amc spirit dl', milesPerGallon: 27.4, cylinders: 4, horsepower: 80 }, - { name: 'mercedes benz 300d', milesPerGallon: 25.4, cylinders: 5, horsepower: 77 }, - { name: 'cadillac eldorado', milesPerGallon: 23, cylinders: 8, horsepower: 125 }, - { name: 'peugeot 504', milesPerGallon: 27.2, cylinders: 4, horsepower: 71 }, - { name: 'oldsmobile cutlass salon brougham', milesPerGallon: 23.9, cylinders: 8, horsepower: 90 }, - { name: 'plymouth horizon', milesPerGallon: 34.2, cylinders: 4, horsepower: 70 }, - { name: 'plymouth horizon tc3', milesPerGallon: 34.5, cylinders: 4, horsepower: 70 }, - { name: 'datsun 210', milesPerGallon: 31.8, cylinders: 4, horsepower: 65 }, - { name: 'fiat strada custom', milesPerGallon: 37.3, cylinders: 4, horsepower: 69 }, - { name: 'buick skylark limited', milesPerGallon: 28.4, cylinders: 4, horsepower: 90 }, - { name: 'chevrolet citation', milesPerGallon: 28.8, cylinders: 6, horsepower: 115 }, - { name: 'oldsmobile omega brougham', milesPerGallon: 26.8, cylinders: 6, horsepower: 115 }, - { name: 'pontiac phoenix', milesPerGallon: 33.5, cylinders: 4, horsepower: 90 }, - { name: 'vw rabbit', milesPerGallon: 41.5, cylinders: 4, horsepower: 76 }, - { name: 'toyota corolla tercel', milesPerGallon: 38.1, cylinders: 4, horsepower: 60 }, - { name: 'chevrolet chevette', milesPerGallon: 32.1, cylinders: 4, horsepower: 70 }, - { name: 'datsun 310', milesPerGallon: 37.2, cylinders: 4, horsepower: 65 }, - { name: 'chevrolet citation', milesPerGallon: 28, cylinders: 4, horsepower: 90 }, - { name: 'ford fairmont', milesPerGallon: 26.4, cylinders: 4, horsepower: 88 }, - { name: 'amc concord', milesPerGallon: 24.3, cylinders: 4, horsepower: 90 }, - { name: 'dodge aspen', milesPerGallon: 19.1, cylinders: 6, horsepower: 90 }, - { name: 'audi 4000', milesPerGallon: 34.3, cylinders: 4, horsepower: 78 }, - { name: 'toyota corona liftback', milesPerGallon: 29.8, cylinders: 4, horsepower: 90 }, - { name: 'mazda 626', milesPerGallon: 31.3, cylinders: 4, horsepower: 75 }, - { name: 'datsun 510 hatchback', milesPerGallon: 37, cylinders: 4, horsepower: 92 }, - { name: 'toyota corolla', milesPerGallon: 32.2, cylinders: 4, horsepower: 75 }, - { name: 'mazda glc', milesPerGallon: 46.6, cylinders: 4, horsepower: 65 }, - { name: 'dodge colt', milesPerGallon: 27.9, cylinders: 4, horsepower: 105 }, - { name: 'datsun 210', milesPerGallon: 40.8, cylinders: 4, horsepower: 65 }, - { name: 'vw rabbit c (diesel)', milesPerGallon: 44.3, cylinders: 4, horsepower: 48 }, - { name: 'vw dasher (diesel)', milesPerGallon: 43.4, cylinders: 4, horsepower: 48 }, - { name: 'audi 5000s (diesel)', milesPerGallon: 36.4, cylinders: 5, horsepower: 67 }, - { name: 'mercedes-benz 240d', milesPerGallon: 30, cylinders: 4, horsepower: 67 }, - { name: 'honda civic 1500 gl', milesPerGallon: 44.6, cylinders: 4, horsepower: 67 }, - { name: 'renault lecar deluxe', milesPerGallon: 40.9, cylinders: 4, horsepower: 0 }, - { name: 'subaru dl', milesPerGallon: 33.8, cylinders: 4, horsepower: 67 }, - { name: 'vokswagen rabbit', milesPerGallon: 29.8, cylinders: 4, horsepower: 62 }, - { name: 'datsun 280-zx', milesPerGallon: 32.7, cylinders: 6, horsepower: 132 }, - { name: 'mazda rx-7 gs', milesPerGallon: 23.7, cylinders: 3, horsepower: 100 }, - { name: 'triumph tr7 coupe', milesPerGallon: 35, cylinders: 4, horsepower: 88 }, - { name: 'ford mustang cobra', milesPerGallon: 23.6, cylinders: 4, horsepower: 0 }, - { name: 'honda Accelerationord', milesPerGallon: 32.4, cylinders: 4, horsepower: 72 }, - { name: 'plymouth reliant', milesPerGallon: 27.2, cylinders: 4, horsepower: 84 }, - { name: 'buick skylark', milesPerGallon: 26.6, cylinders: 4, horsepower: 84 }, - { name: 'dodge aries wagon (sw)', milesPerGallon: 25.8, cylinders: 4, horsepower: 92 }, - { name: 'chevrolet citation', milesPerGallon: 23.5, cylinders: 6, horsepower: 110 }, - { name: 'plymouth reliant', milesPerGallon: 30, cylinders: 4, horsepower: 84 }, - { name: 'toyota starlet', milesPerGallon: 39.1, cylinders: 4, horsepower: 58 }, - { name: 'plymouth champ', milesPerGallon: 39, cylinders: 4, horsepower: 64 }, - { name: 'honda civic 1300', milesPerGallon: 35.1, cylinders: 4, horsepower: 60 }, - { name: 'subaru', milesPerGallon: 32.3, cylinders: 4, horsepower: 67 }, - { name: 'datsun 210', milesPerGallon: 37, cylinders: 4, horsepower: 65 }, - { name: 'toyota tercel', milesPerGallon: 37.7, cylinders: 4, horsepower: 62 }, - { name: 'mazda glc 4', milesPerGallon: 34.1, cylinders: 4, horsepower: 68 }, - { name: 'plymouth horizon 4', milesPerGallon: 34.7, cylinders: 4, horsepower: 63 }, - { name: 'ford escort 4w', milesPerGallon: 34.4, cylinders: 4, horsepower: 65 }, - { name: 'ford escort 2h', milesPerGallon: 29.9, cylinders: 4, horsepower: 65 }, - { name: 'volkswagen jetta', milesPerGallon: 33, cylinders: 4, horsepower: 74 }, - { name: 'renault 18i', milesPerGallon: 34.5, cylinders: 4, horsepower: 0 }, - { name: 'honda prelude', milesPerGallon: 33.7, cylinders: 4, horsepower: 75 }, - { name: 'toyota corolla', milesPerGallon: 32.4, cylinders: 4, horsepower: 75 }, - { name: 'datsun 200sx', milesPerGallon: 32.9, cylinders: 4, horsepower: 100 }, - { name: 'mazda 626', milesPerGallon: 31.6, cylinders: 4, horsepower: 74 }, - { name: 'peugeot 505s turbo diesel', milesPerGallon: 28.1, cylinders: 4, horsepower: 80 }, - { name: 'saab 900s', milesPerGallon: 0, cylinders: 4, horsepower: 110 }, - { name: 'volvo diesel', milesPerGallon: 30.7, cylinders: 6, horsepower: 76 }, - { name: 'toyota cressida', milesPerGallon: 25.4, cylinders: 6, horsepower: 116 }, - { name: 'datsun 810 maxima', milesPerGallon: 24.2, cylinders: 6, horsepower: 120 }, - { name: 'buick century', milesPerGallon: 22.4, cylinders: 6, horsepower: 110 }, - { name: 'oldsmobile cutlass ls', milesPerGallon: 26.6, cylinders: 8, horsepower: 105 }, - { name: 'ford granada gl', milesPerGallon: 20.2, cylinders: 6, horsepower: 88 }, - { name: 'chrysler lebaron salon', milesPerGallon: 17.6, cylinders: 6, horsepower: 85 }, - { name: 'chevrolet cavalier', milesPerGallon: 28, cylinders: 4, horsepower: 88 }, - { name: 'chevrolet cavalier wagon', milesPerGallon: 27, cylinders: 4, horsepower: 88 }, - { name: 'chevrolet cavalier 2-door', milesPerGallon: 34, cylinders: 4, horsepower: 88 }, - { name: 'pontiac j2000 se hatchback', milesPerGallon: 31, cylinders: 4, horsepower: 85 }, - { name: 'dodge aries se', milesPerGallon: 29, cylinders: 4, horsepower: 84 }, - { name: 'pontiac phoenix', milesPerGallon: 27, cylinders: 4, horsepower: 90 }, - { name: 'ford fairmont futura', milesPerGallon: 24, cylinders: 4, horsepower: 92 }, - { name: 'amc concord dl', milesPerGallon: 23, cylinders: 4, horsepower: 0 }, - { name: 'volkswagen rabbit l', milesPerGallon: 36, cylinders: 4, horsepower: 74 }, - { name: 'mazda glc custom l', milesPerGallon: 37, cylinders: 4, horsepower: 68 }, - { name: 'mazda glc custom', milesPerGallon: 31, cylinders: 4, horsepower: 68 }, - { name: 'plymouth horizon miser', milesPerGallon: 38, cylinders: 4, horsepower: 63 }, - { name: 'mercury lynx l', milesPerGallon: 36, cylinders: 4, horsepower: 70 }, - { name: 'nissan stanza xe', milesPerGallon: 36, cylinders: 4, horsepower: 88 }, - { name: 'honda Accelerationord', milesPerGallon: 36, cylinders: 4, horsepower: 75 }, - { name: 'toyota corolla', milesPerGallon: 34, cylinders: 4, horsepower: 70 }, - { name: 'honda civic', milesPerGallon: 38, cylinders: 4, horsepower: 67 }, - { name: 'honda civic (auto)', milesPerGallon: 32, cylinders: 4, horsepower: 67 }, - { name: 'datsun 310 gx', milesPerGallon: 38, cylinders: 4, horsepower: 67 }, - { name: 'buick century limited', milesPerGallon: 25, cylinders: 6, horsepower: 110 }, - { name: 'oldsmobile cutlass ciera (diesel)', milesPerGallon: 38, cylinders: 6, horsepower: 85 }, - { name: 'chrysler lebaron medallion', milesPerGallon: 26, cylinders: 4, horsepower: 92 }, - { name: 'ford granada l', milesPerGallon: 22, cylinders: 6, horsepower: 112 }, - { name: 'toyota celica gt', milesPerGallon: 32, cylinders: 4, horsepower: 96 }, - { name: 'dodge charger 2.2', milesPerGallon: 36, cylinders: 4, horsepower: 84 }, - { name: 'chevrolet camaro', milesPerGallon: 27, cylinders: 4, horsepower: 90 }, - { name: 'ford mustang gl', milesPerGallon: 27, cylinders: 4, horsepower: 86 }, - { name: 'vw pickup', milesPerGallon: 44, cylinders: 4, horsepower: 52 }, - { name: 'dodge rampage', milesPerGallon: 32, cylinders: 4, horsepower: 84 }, - { name: 'ford ranger', milesPerGallon: 28, cylinders: 4, horsepower: 79 }, - { name: 'chevy s-10', milesPerGallon: 31, cylinders: 4, horsepower: 82 } -].map(entry => { - const delta = entry.horsepower - entry.milesPerGallon; - - return { - ...entry, - tag: delta >= 80 || delta < -50 ? 0 : 1 - }; -}); + { + Survived: 0, + Sex: 'male', + Age: 55 + }, + { + Survived: 1, + Sex: 'female', + Age: 49 + }, + { + Survived: 1, + Sex: 'female', + Age: 36 + }, + { + Survived: 0, + Sex: 'male', + Age: 19 + }, + { + Survived: 0, + Sex: 'male', + Age: 14 + }, + { + Survived: 1, + Sex: 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Sex: 'male', + Age: 33 + }, + { + Survived: 0, + Sex: 'male', + Age: 20 + }, + { + Survived: 0, + Sex: 'male', + Age: 19 + }, + { + Survived: 0, + Sex: 'female', + Age: 32 + }, + { + Survived: 1, + Sex: 'female', + Age: 16 + }, + { + Survived: 0, + Sex: 'male', + Age: 25 + }, + { + Survived: 0, + Sex: 'female', + Age: 21 + }, + { + Survived: 1, + Sex: 'male', + Age: 31 + }, + { + Survived: 1, + Sex: 'female', + Age: null + }, + { + Survived: 1, + Sex: 'female', + Age: 52 + }, + { + Survived: 1, + Sex: 'female', + Age: 31 + }, + { + Survived: 0, + Sex: 'male', + Age: 38 + }, + { + Survived: 1, + Sex: 'female', + Age: 28 + }, + { + Survived: 1, + Sex: 'male', + Age: 31 + }, + { + Survived: 1, + Sex: 'female', + Age: 18 + }, + { + Survived: 1, + Sex: 'female', + Age: 24 + }, + { + Survived: 0, + Sex: 'female', + Age: 43 + }, + { + Survived: 1, + Sex: 'female', + Age: null + }, + { + Survived: 0, + Sex: 'male', + Age: 48 + }, + { + Survived: 0, + Sex: 'male', + Age: 47 + }, + { + Survived: 0, + Sex: 'male', + Age: 24 + }, + { + Survived: 1, + Sex: 'male', + Age: null + }, + { + Survived: 1, + Sex: 'female', + Age: 22 + }, + { + Survived: 1, + Sex: 'female', + Age: 1 + }, + { + Survived: 1, + Sex: 'female', + Age: 4 + }, + { + Survived: 0, + Sex: 'female', + Age: 31 + }, + { + Survived: 0, + Sex: 'male', + Age: 42 + }, + { + Survived: 1, + Sex: 'female', + Age: 24 + }, + { + Survived: 0, + Sex: 'male', + Age: 33 + }, + { + Survived: 0, + Sex: 'male', + Age: 2 + }, + { + Survived: 1, + Sex: 'male', + Age: 62 + }, + { + Survived: 0, + Sex: 'male', + Age: 30 + }, + { + Survived: 0, + Sex: 'female', + Age: 21 + }, + { + Survived: 0, + Sex: 'male', + Age: 58 + }, + { + Survived: 1, + Sex: 'female', + Age: 26 + }, + { + Survived: 0, + Sex: 'female', + Age: 44 + }, + { + Survived: 1, + Sex: 'male', + Age: 27 + }, + { + Survived: 0, + Sex: 'male', + Age: 16 + }, + { + Survived: 0, + Sex: 'male', + Age: 2 + }, + { + Survived: 0, + Sex: 'male', + Age: 50 + }, + { + Survived: 0, + Sex: 'male', + Age: 28 + }, + { + Survived: 0, + Sex: 'female', + Age: 28 + }, + { + Survived: 1, + Sex: 'male', + Age: 0.83 + }, + { + Survived: 0, + Sex: 'male', + Age: 42 + }, + { + Survived: 1, + Sex: 'female', + Age: null + }, + { + Survived: 0, + Sex: 'male', + Age: 70 + }, + { + Survived: 1, + Sex: 'female', + Age: 22 + }, + { + Survived: 1, + Sex: 'female', + Age: 28 + }, + { + Survived: 0, + Sex: 'male', + Age: 25 + }, + { + Survived: 1, + Sex: 'female', + Age: 22 + }, + { + Survived: 0, + Sex: 'male', + Age: 21 + }, + { + Survived: 0, + Sex: 'male', + Age: 32 + }, + { + Survived: 0, + Sex: 'male', + Age: 23.5 + }, + { + Survived: 1, + Sex: 'female', + Age: 49 + }, + { + Survived: 0, + Sex: 'male', + Age: 22 + }, + { + Survived: 1, + Sex: 'male', + Age: null + }, + { + Survived: 1, + Sex: 'female', + Age: 22 + }, + { + Survived: 1, + Sex: 'female', + Age: 35 + }, + { + Survived: 0, + Sex: 'male', + Age: 32.5 + }, + { + Survived: 0, + Sex: 'male', + Age: 56 + }, + { + Survived: 0, + Sex: 'male', + Age: 42 + }, + { + Survived: 1, + Sex: 'male', + Age: null + }, + { + Survived: 1, + Sex: 'female', + Age: 41 + }, + { + Survived: 0, + Sex: 'male', + Age: 24 + }, + { + Survived: 0, + Sex: 'male', + Age: 26 + }, + { + Survived: 1, + Sex: 'female', + Age: 23 + }, + { + Survived: 0, + Sex: 'male', + Age: 21 + }, + { + Survived: 1, + Sex: 'male', + Age: 44 + }, + { + Survived: 0, + Sex: 'male', + Age: 33 + }, + { + Survived: 1, + Sex: 'male', + Age: 37 + }, + { + Survived: 0, + Sex: 'female', + Age: 41 + }, + { + Survived: 1, + Sex: 'male', + Age: 20 + }, + { + Survived: 1, + Sex: 'male', + Age: 32 + }, + { + Survived: 1, + Sex: 'female', + Age: 24 + }, + { + Survived: 1, + Sex: 'female', + Age: 24 + }, + { + Survived: 0, + Sex: 'male', + Age: 22 + }, + { + Survived: 0, + Sex: 'male', + Age: 16 + }, + { + Survived: 0, + Sex: 'male', + Age: 25 + }, + { + Survived: 0, + Sex: 'male', + Age: 14 + }, + { + Survived: 1, + Sex: 'female', + Age: 5 + }, + { + Survived: 1, + Sex: 'female', + Age: 32.5 + }, + { + Survived: 1, + Sex: 'female', + Age: 4 + }, + { + Survived: 0, + Sex: 'male', + Age: 37 + }, + { + Survived: 0, + Sex: 'male', + Age: 18 + }, + { + Survived: 1, + Sex: 'female', + Age: 30 + }, + { + Survived: 0, + Sex: 'female', + Age: 38 + }, + { + Survived: 1, + Sex: 'female', + Age: 14 + }, + { + Survived: 0, + Sex: 'male', + Age: 22 + }, + { + Survived: 0, + Sex: 'male', + Age: 64 + }, + { + Survived: 1, + Sex: 'male', + Age: 29 + }, + { + Survived: 1, + Sex: 'male', + Age: 35 + }, + { + Survived: 1, + Sex: 'female', + Age: 39 + }, + { + Survived: 0, + Sex: 'male', + Age: 25 + }, + { + Survived: 0, + Sex: 'male', + Age: 20 + }, + { + Survived: 1, + Sex: 'female', + Age: 52 + }, + { + Survived: 0, + Sex: 'male', + Age: 20 + }, + { + Survived: 1, + Sex: 'male', + Age: null + }, + { + Survived: 1, + Sex: 'female', + Age: null + }, + { + Survived: 1, + Sex: 'male', + Age: 32 + }, + { + Survived: 0, + Sex: 'male', + Age: 36 + }, + { + Survived: 0, + Sex: 'male', + Age: 23 + }, + { + Survived: 0, + Sex: 'female', + Age: 45 + }, + { + Survived: 0, + Sex: 'female', + Age: 9 + }, + { + Survived: 0, + Sex: 'male', + Age: 16 + }, + { + Survived: 1, + Sex: 'male', + Age: 1 + }, + { + Survived: 0, + Sex: 'male', + Age: 18 + }, + { + Survived: 0, + Sex: 'male', + Age: 28 + }, + { + Survived: 1, + Sex: 'male', + Age: 27 + }, + { + Survived: 0, + Sex: 'male', + Age: 23 + }, + { + Survived: 0, + Sex: 'male', + Age: 34 + }, + { + Survived: 1, + Sex: 'male', + Age: 42 + }, + { + Survived: 0, + Sex: 'female', + Age: 6 + }, + { + Survived: 1, + Sex: 'male', + Age: 27 + }, + { + Survived: 1, + Sex: 'female', + Age: 19 + }, + { + Survived: 0, + Sex: 'male', + Age: 65 + }, + { + Survived: 1, + Sex: 'female', + Age: 18 + }, + { + Survived: 1, + Sex: 'female', + Age: null + }, + { + Survived: 1, + Sex: 'female', + Age: null + }, + { + Survived: 0, + Sex: 'male', + Age: 50 + }, + { + Survived: 0, + Sex: 'male', + Age: 24 + }, + { + Survived: 1, + Sex: 'male', + Age: 27 + }, + { + Survived: 0, + Sex: 'female', + Age: 47 + }, + { + Survived: 1, + Sex: 'female', + Age: null + }, + { + Survived: 1, + Sex: 'male', + Age: 8 + }, + { + Survived: 0, + Sex: 'male', + Age: 22 + }, + { + Survived: 1, + Sex: 'female', + Age: 35 + }, + { + Survived: 0, + Sex: 'female', + Age: 26 + }, + { + Survived: 1, + Sex: 'female', + Age: 4 + }, + { + Survived: 0, + Sex: 'male', + Age: 23 + }, + { + Survived: 0, + Sex: 'male', + Age: 24 + }, + { + Survived: 0, + Sex: 'female', + Age: 31 + }, + { + Survived: 1, + Sex: 'female', + Age: 24 + }, + { + Survived: 0, + Sex: 'male', + Age: 45 + }, + { + Survived: 0, + Sex: 'male', + Age: 35 + } +]; // 图表配置 const spec = { type: 'common', + color: ['blue', 'red'], series: [ { type: 'scatter', - xField: 'milesPerGallon', - yField: 'tag', + xField: 'Age', + yField: 'Survived', + seriesField: 'Sex', point: { state: { hover: { @@ -434,7 +2923,7 @@ const spec = { } }, style: { - fillOpacity: 0.25 + fillOpacity: 0.5 } } } @@ -475,14 +2964,16 @@ const spec = { } } }, + legends: { + visible: true + }, axes: [ { title: { visible: true, - text: 'Horse Power' + text: 'Age' }, orient: 'left', - range: { min: 0 }, type: 'linear', min: 0, max: 1 @@ -490,7 +2981,7 @@ const spec = { { title: { visible: true, - text: 'Miles Per Gallon' + text: 'Survived' }, orient: 'bottom', label: { visible: true }, @@ -510,7 +3001,6 @@ const run = () => { appendScatterRegressionLineConfig(spec, [ { type: 'logisitc', - color: 'red', label: { text: 'logisitc' } From 773991e11e6b13e9a1a18e4769274e19add2d549 Mon Sep 17 00:00:00 2001 From: xile611 Date: Mon, 27 Oct 2025 11:50:31 +0800 Subject: [PATCH 3/4] docs: update changlog of rush --- ...fix-logistic-regression-line_2025-10-27-03-50.json | 11 +++++++++++ 1 file changed, 11 insertions(+) create mode 100644 common/changes/@visactor/vchart/fix-logistic-regression-line_2025-10-27-03-50.json diff --git a/common/changes/@visactor/vchart/fix-logistic-regression-line_2025-10-27-03-50.json b/common/changes/@visactor/vchart/fix-logistic-regression-line_2025-10-27-03-50.json new file mode 100644 index 0000000000..92c53ebcc6 --- /dev/null +++ b/common/changes/@visactor/vchart/fix-logistic-regression-line_2025-10-27-03-50.json @@ -0,0 +1,11 @@ +{ + "changes": [ + { + "comment": "fix: update demo about regression line\n\n", + "type": "none", + "packageName": "@visactor/vchart" + } + ], + "packageName": "@visactor/vchart", + "email": "dingling112@gmail.com" +} \ No newline at end of file From 315e6e57a03b5eb29450e1eb4e035f2f612c742c Mon Sep 17 00:00:00 2001 From: xile611 Date: Mon, 27 Oct 2025 12:00:30 +0800 Subject: [PATCH 4/4] fix: fix clamper of regression line --- .../src/components/bar-regression-line/index.ts | 6 ++---- .../src/components/scatter-regression-line/index.ts | 5 ++--- 2 files changed, 4 insertions(+), 7 deletions(-) diff --git a/packages/vchart-extension/src/components/bar-regression-line/index.ts b/packages/vchart-extension/src/components/bar-regression-line/index.ts index 9c18d3d3b7..2ee3cdfe7c 100644 --- a/packages/vchart-extension/src/components/bar-regression-line/index.ts +++ b/packages/vchart-extension/src/components/bar-regression-line/index.ts @@ -2,7 +2,7 @@ * @description vchart 自定义组件，用于实现柱图、线图以及面积图的系列标签 * @author zhangweixing */ -import { array, get, regressionPolynomial } from '@visactor/vutils'; +import { array, clamper, get, regressionPolynomial } from '@visactor/vutils'; import type { Datum, ICartesianSeries, ISpec } from '@visactor/vchart'; import { Direction, SeriesTypeEnum } from '@visactor/vchart'; import type { BarRegressionLineSpec } from './type'; @@ -35,9 +35,7 @@ export function getBarRegressionLineConfig(config: Omit { - return y > start.y + rect.height ? start.y + rect.height : y < start.y ? start.y : y; - }; + const yClamper = clamper(start.y, start.y + rect.height); const data = s.getViewData().latestData; const fieldX = s.fieldX?.[0]; diff --git a/packages/vchart-extension/src/components/scatter-regression-line/index.ts b/packages/vchart-extension/src/components/scatter-regression-line/index.ts index 3383e2d534..70abec5d39 100644 --- a/packages/vchart-extension/src/components/scatter-regression-line/index.ts +++ b/packages/vchart-extension/src/components/scatter-regression-line/index.ts @@ -4,6 +4,7 @@ */ import { array, + clamper, get, regressionLinear, regressionLogistic, @@ -62,9 +63,7 @@ export function getScatterRegressionLineConfig( series.forEach(s => { const start = s.getRegion().getLayoutStartPoint(); const rect = s.getRegion().getLayoutRect(); - const yClamper = (y: number) => { - return y > start.y + rect.height ? start.y + rect.height : y < start.y ? start.y : y; - }; + const yClamper = clamper(start.y, start.y + rect.height); const colorAttrOptions = s.getColorAttribute(); const groups = s.getSeriesKeys(); const data = s.getViewData().latestData;