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Add categorical/date to README

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kojix2 2021-06-17 08:13:58 +09:00
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@ -202,6 +202,16 @@ The following sub-commands are available.
* Use `awk '{print $2, $1}'` to swap columns. Use `paste` to concatenate series.
## Categorical data
* With gne datamash, you can manage to handle categorized data.
* `cat test/fixtures/iris.csv | sed '/^$/d' | datamash --header-in --output-delimiter=: -t, -g5 collapse 3,4 | cut -f2-3 -d: | sed 's/:/\n/g' | uplot s -d, -T --fmt xyxy`
* This is not so easy...
## Time series
* Not yet supported.
## Tools that are useful to use with YouPlot
* [csvtk](https://github.com/shenwei356/csvtk)