diff --git a/02-data.Rmd b/02-data.Rmd
index 4b7647e..71e6a72 100644
--- a/02-data.Rmd
+++ b/02-data.Rmd
@@ -6,11 +6,13 @@ We use [coinmarketcap](https://coinmarketcap.com) to verified top 5 cryptocurren
 library(tidyverse)
 library(ggplot2)
 library(coinmarketcapr)
+```
+
+```{r}
 coinmarketcapr::setup('6a34456f-8a3c-46d5-b07f-6b84e364929c')
 plot_top_currencies(currency = "USD", k = 5, bar_color = "grey")
 ```
 
-
 ```{r}
 BTC <- read.csv("data/BTC-USD.csv")
 BNB <- read.csv("data/BNB-USD.csv")
@@ -28,7 +30,5 @@ df.close
 df.close1<- gather(df.close[,2:6], cryptocurrency, price)
 df.close1$price<-as.numeric(df.close1$price)
 df.close1
-
 ```
 
-
diff --git a/03-cleaning.Rmd b/03-cleaning.Rmd
index 6fcbf74..65b1a5a 100644
--- a/03-cleaning.Rmd
+++ b/03-cleaning.Rmd
@@ -1 +1,13 @@
 # Data transformation
+
+```{r}
+df.close<-data.frame(cbind(BTC[,1],BTC[,6],BNB[,6],ETH[,6],USDC[,6],USDT[,6]))
+colnames(df.close)<-c("Date","BTC","BNB","ETH","USDC","USDT")
+head(df.close)
+```
+
+```{r}
+df.close1<- gather(df.close[,2:6], cryptocurrency, price)
+df.close1$price<-as.numeric(df.close1$price)
+head(df.close1)
+```
diff --git a/EDAVtemplate.Rproj b/EDAVtemplate.Rproj
index 8e3c2eb..827cca1 100644
--- a/EDAVtemplate.Rproj
+++ b/EDAVtemplate.Rproj
@@ -11,3 +11,5 @@ Encoding: UTF-8
 
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new file mode 100644
index 0000000..05e7482
--- /dev/null
+++ b/docs/404.html
@@ -0,0 +1,169 @@
+<!DOCTYPE html>
+<html lang="" xml:lang="">
+<head>
+
+  <meta charset="utf-8" />
+  <meta http-equiv="X-UA-Compatible" content="IE=edge" />
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+  <meta name="description" content="Page not found | Crypto Graphics" />
+  <meta name="generator" content="bookdown 0.26 and GitBook 2.6.7" />
+
+  <meta property="og:title" content="Page not found | Crypto Graphics" />
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+  
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+
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+  <meta name="twitter:title" content="Page not found | Crypto Graphics" />
+  
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+<meta name="author" content="Tianyu Yao, Juntian Zhang" />
+
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+
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+  <meta name="apple-mobile-web-app-status-bar-style" content="black" />
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+<body>
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+
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+      <nav role="navigation">
+
+<ul class="summary">
+<li><a href="./">SHORT TITLE HERE</a></li>
+
+<li class="divider"></li>
+<li class="chapter" data-level="1" data-path="index.html"><a href="index.html"><i class="fa fa-check"></i><b>1</b> Introduction</a></li>
+<li class="chapter" data-level="2" data-path="data-sources.html"><a href="data-sources.html"><i class="fa fa-check"></i><b>2</b> Data sources</a></li>
+<li class="chapter" data-level="3" data-path="data-transformation.html"><a href="data-transformation.html"><i class="fa fa-check"></i><b>3</b> Data transformation</a></li>
+<li class="chapter" data-level="4" data-path="missing-values.html"><a href="missing-values.html"><i class="fa fa-check"></i><b>4</b> Missing values</a></li>
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+<li class="chapter" data-level="7" data-path="conclusion.html"><a href="conclusion.html"><i class="fa fa-check"></i><b>7</b> Conclusion</a></li>
+<li class="divider"></li>
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+</ul>
+
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+    <div class="book-body">
+      <div class="body-inner">
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diff --git a/docs/conclusion.html b/docs/conclusion.html
index a8ce9d0..567542a 100644
--- a/docs/conclusion.html
+++ b/docs/conclusion.html
@@ -4,27 +4,26 @@
 
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   <meta http-equiv="X-UA-Compatible" content="IE=edge" />
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-  <meta name="description" content="Chapter 7 Conclusion | YOUR TITLE HERE" />
-  <meta name="generator" content="bookdown 0.20 and GitBook 2.6.7" />
+  <title>Chapter 7 Conclusion | Crypto Graphics</title>
+  <meta name="description" content="Chapter 7 Conclusion | Crypto Graphics" />
+  <meta name="generator" content="bookdown 0.26 and GitBook 2.6.7" />
 
-  <meta property="og:title" content="Chapter 7 Conclusion | YOUR TITLE HERE" />
+  <meta property="og:title" content="Chapter 7 Conclusion | Crypto Graphics" />
   <meta property="og:type" content="book" />
   
   
   
-  
 
   <meta name="twitter:card" content="summary" />
-  <meta name="twitter:title" content="Chapter 7 Conclusion | YOUR TITLE HERE" />
+  <meta name="twitter:title" content="Chapter 7 Conclusion | Crypto Graphics" />
   
   
   
 
-<meta name="author" content="YOUR NAMES HERE" />
+<meta name="author" content="Tianyu Yao, Juntian Zhang" />
 
 
-<meta name="date" content="2020-11-09" />
+<meta name="date" content="2022-05-01" />
 
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-<script src="libs/accessible-code-block-0.0.1/empty-anchor.js"></script>
 
 
 
@@ -89,7 +90,7 @@
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         <div class="book-header" role="navigation">
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-            <i class="fa fa-circle-o-notch fa-spin"></i><a href="./">YOUR TITLE HERE</a>
+            <i class="fa fa-circle-o-notch fa-spin"></i><a href="./">Crypto Graphics</a>
           </h1>
         </div>
 
@@ -97,8 +98,8 @@ <h1>
           <div class="page-inner">
 
             <section class="normal" id="section-">
-<div id="conclusion" class="section level1" number="7">
-<h1><span class="header-section-number">Chapter 7</span> Conclusion</h1>
+<div id="conclusion" class="section level1 hasAnchor" number="7">
+<h1><span class="header-section-number">Chapter 7</span> Conclusion<a href="conclusion.html#conclusion" class="anchor-section" aria-label="Anchor link to header"></a></h1>
 
 </div>
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diff --git a/docs/data-sources.html b/docs/data-sources.html
index 47df9ec..07913d3 100644
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+++ b/docs/data-sources.html
@@ -4,27 +4,26 @@
 
   <meta charset="utf-8" />
   <meta http-equiv="X-UA-Compatible" content="IE=edge" />
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-  <meta name="description" content="Chapter 2 Data sources | YOUR TITLE HERE" />
-  <meta name="generator" content="bookdown 0.20 and GitBook 2.6.7" />
+  <title>Chapter 2 Data sources | Crypto Graphics</title>
+  <meta name="description" content="Chapter 2 Data sources | Crypto Graphics" />
+  <meta name="generator" content="bookdown 0.26 and GitBook 2.6.7" />
 
-  <meta property="og:title" content="Chapter 2 Data sources | YOUR TITLE HERE" />
+  <meta property="og:title" content="Chapter 2 Data sources | Crypto Graphics" />
   <meta property="og:type" content="book" />
   
   
   
-  
 
   <meta name="twitter:card" content="summary" />
-  <meta name="twitter:title" content="Chapter 2 Data sources | YOUR TITLE HERE" />
+  <meta name="twitter:title" content="Chapter 2 Data sources | Crypto Graphics" />
   
   
   
 
-<meta name="author" content="YOUR NAMES HERE" />
+<meta name="author" content="Tianyu Yao, Juntian Zhang" />
 
 
-<meta name="date" content="2020-11-09" />
+<meta name="date" content="2022-05-01" />
 
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-            <i class="fa fa-circle-o-notch fa-spin"></i><a href="./">YOUR TITLE HERE</a>
+            <i class="fa fa-circle-o-notch fa-spin"></i><a href="./">Crypto Graphics</a>
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           <div class="page-inner">
 
             <section class="normal" id="section-">
-<div id="data-sources" class="section level1" number="2">
-<h1><span class="header-section-number">Chapter 2</span> Data sources</h1>
+<div id="data-sources" class="section level1 hasAnchor" number="2">
+<h1><span class="header-section-number">Chapter 2</span> Data sources<a href="data-sources.html#data-sources" class="anchor-section" aria-label="Anchor link to header"></a></h1>
+<p>We use <a href="https://coinmarketcap.com">coinmarketcap</a> to verified top 5 cryptocurrencies by market cap, and then pulled each cryptocurrency dataset from yahoo finance, including 1 year long trading information (2021 May - 2022 May).</p>
+<p><img src="finalproj_files/figure-html/unnamed-chunk-4-1.png" width="672" /></p>
 
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index 798d7b0..5ba9a49 100644
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@@ -4,27 +4,26 @@
 
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-  <meta name="description" content="Chapter 3 Data transformation | YOUR TITLE HERE" />
-  <meta name="generator" content="bookdown 0.20 and GitBook 2.6.7" />
+  <title>Chapter 3 Data transformation | Crypto Graphics</title>
+  <meta name="description" content="Chapter 3 Data transformation | Crypto Graphics" />
+  <meta name="generator" content="bookdown 0.26 and GitBook 2.6.7" />
 
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+  <meta property="og:title" content="Chapter 3 Data transformation | Crypto Graphics" />
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   <meta name="twitter:card" content="summary" />
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+  <meta name="twitter:title" content="Chapter 3 Data transformation | Crypto Graphics" />
   
   
   
 
-<meta name="author" content="YOUR NAMES HERE" />
+<meta name="author" content="Tianyu Yao, Juntian Zhang" />
 
 
-<meta name="date" content="2020-11-09" />
+<meta name="date" content="2022-05-01" />
 
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 <link rel="next" href="missing-values.html"/>
-<script src="libs/header-attrs-2.3/header-attrs.js"></script>
-<script src="libs/jquery-2.2.3/jquery.min.js"></script>
+<script src="libs/jquery-3.6.0/jquery-3.6.0.min.js"></script>
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           <h1>
-            <i class="fa fa-circle-o-notch fa-spin"></i><a href="./">YOUR TITLE HERE</a>
+            <i class="fa fa-circle-o-notch fa-spin"></i><a href="./">Crypto Graphics</a>
           </h1>
         </div>
 
@@ -97,8 +98,22 @@ <h1>
           <div class="page-inner">
 
             <section class="normal" id="section-">
-<div id="data-transformation" class="section level1" number="3">
-<h1><span class="header-section-number">Chapter 3</span> Data transformation</h1>
+<div id="data-transformation" class="section level1 hasAnchor" number="3">
+<h1><span class="header-section-number">Chapter 3</span> Data transformation<a href="data-transformation.html#data-transformation" class="anchor-section" aria-label="Anchor link to header"></a></h1>
+<pre><code>##         Date          BTC        BNB         ETH     USDC     USDT
+## 1 2021-04-29 53555.109375 599.706543 2756.876953 1.000144 0.999966
+## 2 2021-04-30 57750.175781 624.080566 2773.207031 0.999824 1.000009
+## 3 2021-05-01 57828.050781 619.347229 2945.892822 1.000154 1.000111
+## 4 2021-05-02 56631.078125 622.101013 2952.056152 0.999949 1.000132
+## 5 2021-05-03 57200.292969 675.684082 3431.086182 1.000104 1.000165
+## 6 2021-05-04 53333.539063 611.200317 3253.629395 1.000195 0.999951</code></pre>
+<pre><code>##   cryptocurrency    price
+## 1            BTC 53555.11
+## 2            BTC 57750.18
+## 3            BTC 57828.05
+## 4            BTC 56631.08
+## 5            BTC 57200.29
+## 6            BTC 53333.54</code></pre>
 
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index b00f2e3..dd8de9d 100644
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+++ b/docs/index.html
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   <meta charset="utf-8" />
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-  <title>YOUR TITLE HERE</title>
-  <meta name="description" content="YOUR TITLE HERE" />
-  <meta name="generator" content="bookdown 0.20 and GitBook 2.6.7" />
+  <title>Crypto Graphics</title>
+  <meta name="description" content="Crypto Graphics" />
+  <meta name="generator" content="bookdown 0.26 and GitBook 2.6.7" />
 
-  <meta property="og:title" content="YOUR TITLE HERE" />
+  <meta property="og:title" content="Crypto Graphics" />
   <meta property="og:type" content="book" />
   
   
   
-  
 
   <meta name="twitter:card" content="summary" />
-  <meta name="twitter:title" content="YOUR TITLE HERE" />
+  <meta name="twitter:title" content="Crypto Graphics" />
   
   
   
 
-<meta name="author" content="YOUR NAMES HERE" />
+<meta name="author" content="Tianyu Yao, Juntian Zhang" />
 
 
-<meta name="date" content="2020-11-09" />
+<meta name="date" content="2022-05-01" />
 
   <meta name="viewport" content="width=device-width, initial-scale=1" />
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-<script src="libs/header-attrs-2.3/header-attrs.js"></script>
-<script src="libs/jquery-2.2.3/jquery.min.js"></script>
+<script src="libs/jquery-3.6.0/jquery-3.6.0.min.js"></script>
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-            <i class="fa fa-circle-o-notch fa-spin"></i><a href="./">YOUR TITLE HERE</a>
+            <i class="fa fa-circle-o-notch fa-spin"></i><a href="./">Crypto Graphics</a>
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-<h1 class="title">YOUR TITLE HERE</h1>
-<p class="author"><em>YOUR NAMES HERE</em></p>
-<p class="date"><em>2020-11-09</em></p>
+<h1 class="title">Crypto Graphics</h1>
+<p class="author"><em>Tianyu Yao, Juntian Zhang</em></p>
+<p class="date"><em>2022-05-01</em></p>
 </div>
-<div id="introduction" class="section level1" number="1">
-<h1><span class="header-section-number">Chapter 1</span> Introduction</h1>
+<div id="introduction" class="section level1 hasAnchor" number="1">
+<h1><span class="header-section-number">Chapter 1</span> Introduction<a href="index.html#introduction" class="anchor-section" aria-label="Anchor link to header"></a></h1>
+<p>Cryptocurrency market is trending and we are interested in comparing and contrasting different types of cryptocurrencies, providing insights in the field. After exploring multiple websites that provide crypto market data, we developed a few questions that are hard to answer directly through any single sources:</p>
+<p>1.The correlation between major cryptocurrencies, are they moved upward or downward together?</p>
+<p>2.how “hot” is a cryptocurrency, by trading frequency, volume, etc</p>
+<p>3.how big the crypto market is, i.e, market cap of major cryptocurrencies, compare with each other and figure out the relationships between volatility and the market cap.</p>
 
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index 9359e3f..306c989 100644
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+++ b/docs/interactive-component.html
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-  <meta name="description" content="Chapter 6 Interactive component | YOUR TITLE HERE" />
-  <meta name="generator" content="bookdown 0.20 and GitBook 2.6.7" />
+  <title>Chapter 6 Interactive component | Crypto Graphics</title>
+  <meta name="description" content="Chapter 6 Interactive component | Crypto Graphics" />
+  <meta name="generator" content="bookdown 0.26 and GitBook 2.6.7" />
 
-  <meta property="og:title" content="Chapter 6 Interactive component | YOUR TITLE HERE" />
+  <meta property="og:title" content="Chapter 6 Interactive component | Crypto Graphics" />
   <meta property="og:type" content="book" />
   
   
   
-  
 
   <meta name="twitter:card" content="summary" />
-  <meta name="twitter:title" content="Chapter 6 Interactive component | YOUR TITLE HERE" />
+  <meta name="twitter:title" content="Chapter 6 Interactive component | Crypto Graphics" />
   
   
   
 
-<meta name="author" content="YOUR NAMES HERE" />
+<meta name="author" content="Tianyu Yao, Juntian Zhang" />
 
 
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-<script src="libs/header-attrs-2.3/header-attrs.js"></script>
-<script src="libs/jquery-2.2.3/jquery.min.js"></script>
+<script src="libs/jquery-3.6.0/jquery-3.6.0.min.js"></script>
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         <div class="book-header" role="navigation">
           <h1>
-            <i class="fa fa-circle-o-notch fa-spin"></i><a href="./">YOUR TITLE HERE</a>
+            <i class="fa fa-circle-o-notch fa-spin"></i><a href="./">Crypto Graphics</a>
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             <section class="normal" id="section-">
-<div id="interactive-component" class="section level1" number="6">
-<h1><span class="header-section-number">Chapter 6</span> Interactive component</h1>
+<div id="interactive-component" class="section level1 hasAnchor" number="6">
+<h1><span class="header-section-number">Chapter 6</span> Interactive component<a href="interactive-component.html#interactive-component" class="anchor-section" aria-label="Anchor link to header"></a></h1>
 
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new file mode 100644
index 0000000..b563ec9
--- /dev/null
+++ b/docs/libs/anchor-sections-1.1.0/anchor-sections-hash.css
@@ -0,0 +1,2 @@
+/* Styles for section anchors */
+a.anchor-section::before {content: '#';font-size: 80%;}
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new file mode 100644
index 0000000..041905f
--- /dev/null
+++ b/docs/libs/anchor-sections-1.1.0/anchor-sections.css
@@ -0,0 +1,4 @@
+/* Styles for section anchors */
+a.anchor-section {margin-left: 10px; visibility: hidden; color: inherit;}
+.hasAnchor:hover a.anchor-section {visibility: visible;}
+ul > li > .anchor-section {display: none;}
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new file mode 100644
index 0000000..fee005d
--- /dev/null
+++ b/docs/libs/anchor-sections-1.1.0/anchor-sections.js
@@ -0,0 +1,11 @@
+document.addEventListener('DOMContentLoaded', function () {
+  // If section divs is used, we need to put the anchor in the child header
+  const headers = document.querySelectorAll("div.hasAnchor.section[class*='level'] > :first-child")
+
+  headers.forEach(function (x) {
+    // Add to the header node
+    if (!x.classList.contains('hasAnchor')) x.classList.add('hasAnchor')
+    // Remove from the section or div created by Pandoc
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index 8e5bb8a..ab7c20e 100644
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@@ -90,10 +90,16 @@ div.theorem, div.lemma, div.corollary, div.proposition, div.conjecture {
 span.theorem, span.lemma, span.corollary, span.proposition, span.conjecture {
   font-style: normal;
 }
-div.proof:after {
+div.proof>*:last-child:after {
   content: "\25a2";
   float: right;
 }
 .header-section-number {
   padding-right: .5em;
 }
+#header .multi-author {
+  margin: 0.5em 0 -0.5em 0;
+}
+#header .date {
+  margin-top: 1.5em;
+}
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index 87236b4..3fa6f35 100644
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@@ -44,6 +44,11 @@
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+
+/* sidebar transition background */
+div.book.color-theme-1 {
+  background: #f3eacb;
+}
 .book.color-theme-1 .book-body {
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   background: #f3eacb;
@@ -51,6 +56,12 @@
 .book.color-theme-1 .book-body .page-wrapper .page-inner section {
   background: #f3eacb;
 }
+
+/* sidebar transition background */
+div.book.color-theme-2 {
+  background: #1c1f2b;
+}
+
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index b896892..1b0c622 100644
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- *  Font Awesome 4.1.0 by @davegandy - http://fontawesome.io - @fontawesome
+ *  Font Awesome 4.7.0 by @davegandy - http://fontawesome.io - @fontawesome
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rgba(0,0,0,.1);height:auto;left:0;width:auto;margin-left:-1px}.dropdown-menu .dropdown-caret .caret-inner{margin-top:-1px;top:1px;border-bottom:9px solid #fafafa}.dropdown-menu .buttons{border-bottom:1px solid rgba(0,0,0,.07)}.dropdown-menu .buttons:after,.dropdown-menu .buttons:before{content:" ";display:table;line-height:0}.dropdown-menu .buttons:last-child{border-bottom:none}.dropdown-menu .buttons .button{border:0;background-color:transparent;color:#a6a6a6;width:100%;text-align:center;float:left;line-height:1.42857143;padding:8px 4px}.alert,.dropdown-menu .buttons .button:hover{color:#444}.dropdown-menu .buttons .button:focus,.dropdown-menu .buttons .button:hover{outline:0}.dropdown-menu .buttons .button.size-2{width:50%}.dropdown-menu .buttons .button.size-3{width:33%}.alert{padding:15px;margin-bottom:20px;background:#eee;border-bottom:5px solid #ddd}.alert-success{background:#dff0d8;border-color:#d6e9c6;color:#3c763d}.alert-info{background:#d9edf7;border-color:#bce8f1;color:#31708f}.alert-danger{background:#f2dede;border-color:#ebccd1;color:#a94442}.alert-warning{background:#fcf8e3;border-color:#faebcc;color:#8a6d3b}.book .book-summary{position:absolute;top:0;left:-300px;bottom:0;z-index:1;width:300px;color:#364149;background:#fafafa;border-right:1px solid rgba(0,0,0,.07);-webkit-transition:left 250ms ease;-moz-transition:left 250ms ease;-o-transition:left 250ms ease;transition:left 250ms ease}.book .book-summary ul.summary{position:absolute;top:0;left:0;right:0;bottom:0;overflow-y:auto;list-style:none;margin:0;padding:0;-webkit-transition:top .5s ease;-moz-transition:top .5s ease;-o-transition:top .5s ease;transition:top .5s ease}.book .book-summary ul.summary li{list-style:none}.book .book-summary ul.summary li.divider{height:1px;margin:7px 0;overflow:hidden;background:rgba(0,0,0,.07)}.book .book-summary ul.summary li i.fa-check{display:none;position:absolute;right:9px;top:16px;font-size:9px;color:#3c3}.book .book-summary ul.summary li.done>a{color:#364149;font-weight:400}.book .book-summary ul.summary li.done>a i{display:inline}.book .book-summary ul.summary li a,.book .book-summary ul.summary li span{display:block;padding:10px 15px;border-bottom:none;color:#364149;background:0 0;text-overflow:ellipsis;overflow:hidden;white-space:nowrap;position:relative}.book .book-summary ul.summary li span{cursor:not-allowed;opacity:.3;filter:alpha(opacity=30)}.book .book-summary ul.summary li a:hover,.book .book-summary ul.summary li.active>a{color:#008cff;background:0 0;text-decoration:none}.book .book-summary ul.summary li ul{padding-left:20px}@media (max-width:600px){.book .book-summary{width:calc(100% - 60px);bottom:0;left:-100%}}.book.with-summary .book-summary{left:0}.book.without-animation .book-summary{-webkit-transition:none!important;-moz-transition:none!important;-o-transition:none!important;transition:none!important}.book{position:relative;width:100%;height:100%}.book .book-body,.book .book-body .body-inner{position:absolute;top:0;left:0;overflow-y:auto;bottom:0;right:0}.book .book-body{color:#000;background:#fff;-webkit-transition:left 250ms ease;-moz-transition:left 250ms ease;-o-transition:left 250ms ease;transition:left 250ms ease}.book .book-body .page-wrapper{position:relative;outline:0}.book .book-body .page-wrapper .page-inner{max-width:800px;margin:0 auto;padding:20px 0 40px}.book .book-body .page-wrapper .page-inner section{margin:0;padding:5px 15px;background:#fff;border-radius:2px;line-height:1.7;font-size:1.6rem}.book .book-body .page-wrapper .page-inner .btn-group .btn{border-radius:0;background:#eee;border:0}@media (max-width:1240px){.book .book-body{-webkit-transition:-webkit-transform 250ms ease;-moz-transition:-moz-transform 250ms ease;-o-transition:-o-transform 250ms ease;transition:transform 250ms ease;padding-bottom:20px}.book .book-body .body-inner{position:static;min-height:calc(100% - 50px)}}@media (min-width:600px){.book.with-summary .book-body{left:300px}}@media (max-width:600px){.book.with-summary{overflow:hidden}.book.with-summary .book-body{-webkit-transform:translate(calc(100% - 60px),0);-moz-transform:translate(calc(100% - 60px),0);-ms-transform:translate(calc(100% - 60px),0);-o-transform:translate(calc(100% - 60px),0);transform:translate(calc(100% - 60px),0)}}.book.without-animation .book-body{-webkit-transition:none!important;-moz-transition:none!important;-o-transition:none!important;transition:none!important}.buttons:after,.buttons:before{content:" ";display:table;line-height:0}.button{border:0;background:#eee;color:#666;width:100%;text-align:center;float:left;line-height:1.42857143;padding:8px 4px}.button:hover{color:#444}.button:focus,.button:hover{outline:0}.button.size-2{width:50%}.button.size-3{width:33%}.book .book-body .page-wrapper .page-inner section{display:none}.book .book-body .page-wrapper .page-inner section.normal{display:block;word-wrap:break-word;overflow:hidden;color:#333;line-height:1.7;text-size-adjust:100%;-ms-text-size-adjust:100%;-webkit-text-size-adjust:100%;-moz-text-size-adjust:100%}.book .book-body .page-wrapper .page-inner section.normal *{box-sizing:border-box;-webkit-box-sizing:border-box;}.book .book-body .page-wrapper .page-inner section.normal>:first-child{margin-top:0!important}.book .book-body .page-wrapper .page-inner section.normal>:last-child{margin-bottom:0!important}.book .book-body .page-wrapper .page-inner section.normal blockquote,.book .book-body .page-wrapper .page-inner section.normal code,.book .book-body .page-wrapper .page-inner section.normal figure,.book .book-body .page-wrapper .page-inner section.normal img,.book .book-body .page-wrapper .page-inner section.normal pre,.book .book-body .page-wrapper .page-inner section.normal table,.book .book-body .page-wrapper .page-inner section.normal tr{page-break-inside:avoid}.book .book-body .page-wrapper .page-inner section.normal h2,.book .book-body .page-wrapper .page-inner section.normal h3,.book .book-body .page-wrapper .page-inner section.normal h4,.book .book-body .page-wrapper .page-inner section.normal h5,.book .book-body .page-wrapper .page-inner section.normal p{orphans:3;widows:3}.book .book-body .page-wrapper .page-inner section.normal h1,.book .book-body .page-wrapper .page-inner section.normal h2,.book .book-body .page-wrapper .page-inner section.normal h3,.book .book-body .page-wrapper .page-inner section.normal h4,.book .book-body .page-wrapper .page-inner section.normal h5{page-break-after:avoid}.book .book-body .page-wrapper .page-inner section.normal b,.book .book-body .page-wrapper .page-inner section.normal strong{font-weight:700}.book .book-body .page-wrapper .page-inner section.normal em{font-style:italic}.book .book-body .page-wrapper .page-inner section.normal blockquote,.book .book-body .page-wrapper .page-inner section.normal dl,.book .book-body .page-wrapper .page-inner section.normal ol,.book .book-body .page-wrapper .page-inner section.normal p,.book .book-body .page-wrapper .page-inner section.normal table,.book .book-body .page-wrapper .page-inner section.normal ul{margin-top:0;margin-bottom:.85em}.book .book-body .page-wrapper .page-inner section.normal a{color:#4183c4;text-decoration:none;background:0 0}.book .book-body .page-wrapper .page-inner section.normal a:active,.book .book-body .page-wrapper .page-inner section.normal a:focus,.book .book-body .page-wrapper .page-inner section.normal a:hover{outline:0;text-decoration:underline}.book .book-body .page-wrapper .page-inner section.normal img{border:0;max-width:100%}.book .book-body .page-wrapper .page-inner section.normal hr{height:4px;padding:0;margin:1.7em 0;overflow:hidden;background-color:#e7e7e7;border:none}.book .book-body .page-wrapper .page-inner section.normal hr:after,.book .book-body .page-wrapper .page-inner section.normal hr:before{display:table;content:" "}.book .book-body .page-wrapper .page-inner section.normal h1,.book .book-body .page-wrapper .page-inner section.normal h2,.book .book-body .page-wrapper .page-inner section.normal h3,.book .book-body .page-wrapper .page-inner section.normal h4,.book .book-body .page-wrapper .page-inner section.normal h5,.book .book-body .page-wrapper .page-inner section.normal h6{margin-top:1.275em;margin-bottom:.85em;}.book .book-body .page-wrapper .page-inner section.normal h1{font-size:2em}.book .book-body .page-wrapper .page-inner section.normal h2{font-size:1.75em}.book .book-body .page-wrapper .page-inner section.normal h3{font-size:1.5em}.book .book-body .page-wrapper .page-inner section.normal h4{font-size:1.25em}.book .book-body .page-wrapper .page-inner section.normal h5{font-size:1em}.book .book-body .page-wrapper .page-inner section.normal h6{font-size:1em;color:#777}.book .book-body .page-wrapper .page-inner section.normal code,.book .book-body .page-wrapper .page-inner section.normal pre{font-family:Consolas,"Liberation Mono",Menlo,Courier,monospace;direction:ltr;border:none;color:inherit}.book .book-body .page-wrapper .page-inner section.normal pre{overflow:auto;word-wrap:normal;margin:0 0 1.275em;padding:.85em 1em;background:#f7f7f7}.book .book-body .page-wrapper .page-inner section.normal pre>code{display:inline;max-width:initial;padding:0;margin:0;overflow:initial;line-height:inherit;font-size:.85em;white-space:pre;background:0 0}.book .book-body .page-wrapper .page-inner section.normal pre>code:after,.book .book-body .page-wrapper .page-inner section.normal pre>code:before{content:normal}.book .book-body .page-wrapper .page-inner section.normal code{padding:.2em;margin:0;font-size:.85em;background-color:#f7f7f7}.book .book-body .page-wrapper .page-inner section.normal code:after,.book .book-body .page-wrapper .page-inner section.normal code:before{letter-spacing:-.2em;content:"\00a0"}.book .book-body .page-wrapper .page-inner section.normal ol,.book .book-body .page-wrapper .page-inner section.normal ul{padding:0 0 0 2em;margin:0 0 .85em}.book .book-body .page-wrapper .page-inner section.normal ol ol,.book .book-body .page-wrapper .page-inner section.normal ol ul,.book .book-body .page-wrapper .page-inner section.normal ul ol,.book .book-body .page-wrapper .page-inner section.normal ul ul{margin-top:0;margin-bottom:0}.book .book-body .page-wrapper .page-inner section.normal ol ol{list-style-type:lower-roman}.book .book-body .page-wrapper .page-inner section.normal blockquote{margin:0 0 .85em;padding:0 15px;opacity:0.75;border-left:4px solid #dcdcdc}.book .book-body .page-wrapper .page-inner section.normal blockquote:first-child{margin-top:0}.book .book-body .page-wrapper .page-inner section.normal blockquote:last-child{margin-bottom:0}.book .book-body .page-wrapper .page-inner section.normal dl{padding:0}.book .book-body .page-wrapper .page-inner section.normal dl dt{padding:0;margin-top:.85em;font-style:italic;font-weight:700}.book .book-body .page-wrapper .page-inner section.normal dl dd{padding:0 .85em;margin-bottom:.85em}.book .book-body .page-wrapper .page-inner section.normal dd{margin-left:0}.book .book-body .page-wrapper .page-inner section.normal .glossary-term{cursor:help;text-decoration:underline}.book .book-body .navigation{position:absolute;top:50px;bottom:0;margin:0;max-width:150px;min-width:90px;display:flex;justify-content:center;align-content:center;flex-direction:column;font-size:40px;color:#ccc;text-align:center;-webkit-transition:all 350ms ease;-moz-transition:all 350ms ease;-o-transition:all 350ms ease;transition:all 350ms ease}.book .book-body .navigation:hover{text-decoration:none;color:#444}.book .book-body .navigation.navigation-next{right:0}.book .book-body .navigation.navigation-prev{left:0}@media (max-width:1240px){.book .book-body .navigation{position:static;top:auto;max-width:50%;width:50%;display:inline-block;float:left}.book .book-body .navigation.navigation-unique{max-width:100%;width:100%}}.book .book-body .page-wrapper .page-inner section.glossary{margin-bottom:40px}.book .book-body .page-wrapper .page-inner section.glossary h2 a,.book .book-body .page-wrapper .page-inner section.glossary h2 a:hover{color:inherit;text-decoration:none}.book .book-body .page-wrapper .page-inner section.glossary .glossary-index{list-style:none;margin:0;padding:0}.book .book-body .page-wrapper .page-inner section.glossary .glossary-index li{display:inline;margin:0 8px;white-space:nowrap}*{-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box;-webkit-overflow-scrolling:touch;-webkit-tap-highlight-color:transparent;-webkit-text-size-adjust:none;-webkit-touch-callout:none}a{text-decoration:none}body,html{height:100%}html{font-size:62.5%}body{text-rendering:optimizeLegibility;font-smoothing:antialiased;font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:14px;letter-spacing:.2px;text-size-adjust:100%}
 .book .book-summary ul.summary li a span {display:inline;padding:initial;overflow:visible;cursor:auto;opacity:1;}
+/* show arrow before summary tag as in bootstrap */
+details > summary {display:list-item;cursor:pointer;}
+/*add whatsapp icon from FA 5.1.1
+TODO: remove when updating fontawesome*/
+.fa-whatsapp:before{content:"\f232"}
diff --git a/docs/libs/gitbook-2.6.7/js/plugin-search.js b/docs/libs/gitbook-2.6.7/js/plugin-search.js
index 31b5786..747fcce 100644
--- a/docs/libs/gitbook-2.6.7/js/plugin-search.js
+++ b/docs/libs/gitbook-2.6.7/js/plugin-search.js
@@ -1,9 +1,24 @@
 gitbook.require(["gitbook", "lodash", "jQuery"], function(gitbook, _, $) {
     var index = null;
+    var fuse = null;
+    var _search = {engine: 'lunr', opts: {}};
     var $searchInput, $searchLabel, $searchForm;
     var $highlighted = [], hi, hiOpts = { className: 'search-highlight' };
     var collapse = false, toc_visible = [];
 
+    function init(config) {
+        // Instantiate search settings
+        _search = gitbook.storage.get("search", {
+            engine: config.search.engine || 'lunr',
+            opts: config.search.options || {},
+        });
+    };
+
+    // Save current search settings
+    function saveSearchSettings() {
+        gitbook.storage.set("search", _search);
+    }
+
     // Use a specific index
     function loadIndex(data) {
         // [Yihui] In bookdown, I use a character matrix to store the chapter
@@ -14,18 +29,36 @@ gitbook.require(["gitbook", "lodash", "jQuery"], function(gitbook, _, $) {
         // lunr cannot handle non-English text very well, e.g. the default
         // tokenizer cannot deal with Chinese text, so we may want to replace
         // lunr with a dumb simple text matching approach.
-        index = lunr(function () {
-          this.ref('url');
-          this.field('title', { boost: 10 });
-          this.field('body');
-        });
-        data.map(function(item) {
-          index.add({
-            url: item[0],
-            title: item[1],
-            body: item[2]
+        if (_search.engine === 'lunr') {
+          index = lunr(function () {
+            this.ref('url');
+            this.field('title', { boost: 10 });
+            this.field('body');
           });
-        });
+          data.map(function(item) {
+            index.add({
+              url: item[0],
+              title: item[1],
+              body: item[2]
+            });
+          });
+          return;
+        }
+        fuse = new Fuse(data.map((_data => {
+            return {
+                url: _data[0],
+                title: _data[1],
+                body: _data[2]
+            };
+        })), Object.assign(
+            {
+                includeScore: true,
+                threshold: 0.1,
+                ignoreLocation: true,
+                keys: ["title", "body"]
+            },
+            _search.opts
+        ));
     }
 
     // Fetch the search index
@@ -36,20 +69,33 @@ gitbook.require(["gitbook", "lodash", "jQuery"], function(gitbook, _, $) {
 
     // Search for a term and return results
     function search(q) {
-        if (!index) return;
-
-        var results = _.chain(index.search(q))
-        .map(function(result) {
-            var parts = result.ref.split("#");
-            return {
-                path: parts[0],
-                hash: parts[1]
-            };
-        })
-        .value();
+        let results = [];
+        switch (_search.engine) {
+            case 'fuse':
+                if (!fuse) return;
+                results = fuse.search(q).map(function(result) {
+                    var parts = result.item.url.split('#');
+                    return {
+                        path: parts[0],
+                        hash: parts[1]
+                    };
+                });
+                break;
+            case 'lunr':
+            default:
+                if (!index) return;
+                results = _.chain(index.search(q)).map(function(result) {
+                    var parts = result.ref.split("#");
+                    return {
+                        path: parts[0],
+                        hash: parts[1]
+                    };
+                })
+                .value();
+        }
 
         // [Yihui] Highlight the search keyword on current page
-        $highlighted = results.length === 0 ? [] : $('.page-inner')
+        $highlighted = $('.page-inner')
           .unhighlight(hiOpts).highlight(q, hiOpts).find('span.search-highlight');
         scrollToHighlighted(0);
 
@@ -172,6 +218,7 @@ gitbook.require(["gitbook", "lodash", "jQuery"], function(gitbook, _, $) {
     gitbook.events.bind("start", function(e, config) {
         // [Yihui] disable search
         if (config.search === false) return;
+        init(config);
         collapse = !config.toc || config.toc.collapse === 'section' ||
           config.toc.collapse === 'subsection';
 
diff --git a/docs/libs/gitbook-2.6.7/js/plugin-sharing.js b/docs/libs/gitbook-2.6.7/js/plugin-sharing.js
index 8d27951..9a01b0f 100644
--- a/docs/libs/gitbook-2.6.7/js/plugin-sharing.js
+++ b/docs/libs/gitbook-2.6.7/js/plugin-sharing.js
@@ -23,7 +23,7 @@ gitbook.require(["gitbook", "lodash", "jQuery"], function(gitbook, _, $) {
             'icon': 'fa fa-twitter',
             'onClick': function(e) {
                 e.preventDefault();
-                window.open("http://twitter.com/intent/tweet?text="+document.title+"&url="+encodeURIComponent(location.href)+"&hashtags=rmarkdown,bookdown");
+                window.open("http://twitter.com/intent/tweet?text="+encodeURIComponent(document.title)+"&url="+encodeURIComponent(location.href)+"&hashtags=rmarkdown,bookdown");
             }
         },
         'linkedin': {
@@ -57,10 +57,21 @@ gitbook.require(["gitbook", "lodash", "jQuery"], function(gitbook, _, $) {
                 e.preventDefault();
                 window.open("http://vkontakte.ru/share.php?url="+encodeURIComponent(location.href));
             }
-        }
+        },
+        'whatsapp': {
+            'label': 'Whatsapp',
+            'icon': 'fa fa-whatsapp',
+            'onClick': function(e) {
+                e.preventDefault();
+                var url = encodeURIComponent(location.href);
+                window.open((isMobile() ? "whatsapp://send" : "https://web.whatsapp.com/send") + "?text=" + url);
+            }
+        },
     };
 
-
+    function isMobile() {
+      return !!navigator.maxTouchPoints;
+    }
 
     gitbook.events.bind("start", function(e, config) {
         var opts = config.sharing;
diff --git a/docs/libs/jquery-3.6.0/jquery-3.6.0.min.js b/docs/libs/jquery-3.6.0/jquery-3.6.0.min.js
new file mode 100644
index 0000000..c4c6022
--- /dev/null
+++ b/docs/libs/jquery-3.6.0/jquery-3.6.0.min.js
@@ -0,0 +1,2 @@
+/*! jQuery v3.6.0 | (c) OpenJS Foundation and other contributors | jquery.org/license */
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+[["index.html", "Crypto Graphics Chapter 1 Introduction", " Crypto Graphics Tianyu Yao, Juntian Zhang 2022-05-01 Chapter 1 Introduction Cryptocurrency market is trending and we are interested in comparing and contrasting different types of cryptocurrencies, providing insights in the field. After exploring multiple websites that provide crypto market data, we developed a few questions that are hard to answer directly through any single sources: 1.The correlation between major cryptocurrencies, are they moved upward or downward together? 2.how “hot” is a cryptocurrency, by trading frequency, volume, etc 3.how big the crypto market is, i.e, market cap of major cryptocurrencies, compare with each other and figure out the relationships between volatility and the market cap. "],["data-sources.html", "Chapter 2 Data sources", " Chapter 2 Data sources We use coinmarketcap to verified top 5 cryptocurrencies by market cap, and then pulled each cryptocurrency dataset from yahoo finance, including 1 year long trading information (2021 May - 2022 May). "],["data-transformation.html", "Chapter 3 Data transformation", " Chapter 3 Data transformation ## Date BTC BNB ETH USDC USDT ## 1 2021-04-29 53555.109375 599.706543 2756.876953 1.000144 0.999966 ## 2 2021-04-30 57750.175781 624.080566 2773.207031 0.999824 1.000009 ## 3 2021-05-01 57828.050781 619.347229 2945.892822 1.000154 1.000111 ## 4 2021-05-02 56631.078125 622.101013 2952.056152 0.999949 1.000132 ## 5 2021-05-03 57200.292969 675.684082 3431.086182 1.000104 1.000165 ## 6 2021-05-04 53333.539063 611.200317 3253.629395 1.000195 0.999951 ## cryptocurrency price ## 1 BTC 53555.11 ## 2 BTC 57750.18 ## 3 BTC 57828.05 ## 4 BTC 56631.08 ## 5 BTC 57200.29 ## 6 BTC 53333.54 "],["missing-values.html", "Chapter 4 Missing values", " Chapter 4 Missing values "],["results.html", "Chapter 5 Results", " Chapter 5 Results "],["interactive-component.html", "Chapter 6 Interactive component", " Chapter 6 Interactive component "],["conclusion.html", "Chapter 7 Conclusion", " Chapter 7 Conclusion "],["404.html", "Page not found", " Page not found The page you requested cannot be found (perhaps it was moved or renamed). You may want to try searching to find the page's new location, or use the table of contents to find the page you are looking for. "]]
