8000 Bar chart support by lovromazgon · Pull Request #323 · shenwei356/csvtk · GitHub
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Bar chart support #323

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Merged
merged 3 commits into from
May 5, 2025
Merged

Bar chart support #323

merged 3 commits into from
May 5, 2025

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lovromazgon
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@lovromazgon lovromazgon commented Apr 25, 2025 •
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I noticed that it was originally planned to support bar charts, but that feature wasn't implemented. I added the command csvtk plot bar that allows you to output a bar chart.

The PR is still missing documentation and examples. I was testing it with my own data, and it almost works as expected. I need to make sure labels and legend are set correctly and aligned to the bars in all scenarios (e.g. grouped data).

I wanted to first open the PR to see if this is something you'd be willing to include in csvtk so to know if it's worth finalizing the code and documentation.

For instance, running this:

cat testdata/date2value.csv \
    | csvtk gather -f 2- -k type -v count \
    | csvtk plot bar --group-field type -x date -y count --legend-top \
    > bar-chart.png

Creates this graph:
graph

Let me know what you think 🙂

@shenwei356
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I wanted to first open the PR to see if this is something you'd be willing to include in csvtk so to know if it's worth finalizing the code and documentation.

Looks great! Thanks!

@shenwei356 shenwei356 merged commit e9bc089 into shenwei356:master May 5, 2025
@BrewTestBot BrewTestBot mentioned this pull request May 31, 2025
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@lovromazgon @shenwei356
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