Issue #593: Rename "range" to "interval_range"

[nikosbosse]

Description

This PR closes #593

As mentioned in #593, we're currently using "range" to denote the range of a prediction interval. To make this clearer, this PR replaces "range" with "interval_range".

Specifically, this PR

• is very boring
• replaces "range" with "interval_range" both in the code and the documentation
• renames the range format (used internally) to interval format (more consistent with what other functions are already using)
• Renames plot_ranges() to plot_interval_ranges() - I'm thinking more and more that we should maybe just drop the function altogether for now and reintroduce it in the future
• adds a news item

I don't know why the snapshot test is failing (the same issue appeared in #592). Locally, everything is fine.

Checklist

• My PR is based on a package issue and I have explicitly linked it.
• I have included the target issue or issues in the PR title as follows: issue-number: PR title
• I have tested my changes locally.
• I have added or updated unit tests where necessary.
• I have updated the documentation if required.
• I have built the package locally and run rebuilt docs using roxygen2.
• My code follows the established coding standards and I have run lintr::lint_package() to check for style issues introduced by my changes.
• I have added a news item linked to this PR.
• I have reviewed CI checks for this PR and addressed them as far as I am able.

[seabbs]

its because data.table has been updated on CRAN. if you update I think you will see the same issues.

[nikosbosse]

Ahh thanks that makes sense. Fix in #618.

[seabbs]

LGTM

[codecov]

Codecov Report

Attention: 7 lines in your changes are missing coverage. Please review.

Comparison is base (39c95d4) 85.88% compared to head (da79478) 85.90%.

Files	Patch %	Lines
R/metrics-quantile.R	77.77%	4 Missing ⚠️
R/check-inputs-scoring-functions.R	60.00%	2 Missing ⚠️
R/summarise_scores.R	66.66%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #616      +/-   ##
==========================================
+ Coverage   85.88%   85.90%   +0.02%     
==========================================
  Files          21       21              
  Lines        1771     1781      +10     
==========================================
+ Hits         1521     1530       +9     
- Misses        250      251       +1     

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