YouPlot is a command line tool that draws plots in the terminal.
:bar_chart: Powered by [UnicodePlot](https://github.com/red-data-tools/unicode_plot.rb)
### count
```sh
cat gencode.v35.annotation.gff3 \
| grep -v '#' | grep 'gene' | cut -f1 \
| uplot count -t "The number of human gene annotations per chromosome" -c blue
```
In this example, YouPlot counts the number of chromosomes where genes are located.
* [GENCODE - Human Release](https://www.gencodegenes.org/human/)
Note: `count` is not very fast because it runs in a Ruby script.
This is fine in most cases, as long as the data size is small. If you want to visualize huge data, it is faster to use a combination of common Unix commands as shown below.
```sh
cat gencode.v35.annotation.gff3 | grep -v '#' | grep 'gene' | cut -f1 \
| sort | uniq -c | sort -nrk1 \
| uplot bar --fmt yx -d ' ' -t "The number of human gene annotations per chromosome" -c blue
```
## Usage
### Commands
`uplot` is the shortened form of `youplot`. You can use either.
| Command | Description |
|------------------------------------------------|-----------------------------------|
| `cat data.tsv \| uplot [options]` | Take input from stdin |
| `uplot [options] data.tsv ...` | Take input from files |
| `pipeline1 \| uplot -O \| pipeline2` | Outputs data from stdin to stdout |
### Subcommands
The following sub-commands are available.
| command | short | how it works |
|-----------|-------|----------------------------------------|
| barplot | bar | draw a horizontal barplot |
| histogram | hist | draw a horizontal histogram |
| lineplot | line | draw a line chart |
| lineplots | lines | draw a line chart with multiple series |
| scatter | s | draw a scatter plot |
| density | d | draw a density plot |
| boxplot | box | draw a horizontal boxplot |
| | | |
| count | c | draw a barplot based on the number of occurrences (slow) |
| | | |
| colors | color | show the list of available colors |
### Output the plot
* `-o`
* By default, the plot is output to **standard error output**.
* If you want to output to standard input, Use hyphen ` -o -` or no argument `uplot s -o | `.
### Output the input data
* `-O`
* By default, the input data is not shown anywhere.
* If you want to pass the input data directly to the standard output, Use hyphen `-O -` or no argument `uplot s -O |`.
* This is useful when passing data to a subsequent pipeline.
### Header
* `-H`
* If input data contains a header line, you need to specify the `-H` option.
### Delimiter
* `-d`
* You do not need to use `-d` option for tab-delimited text since the default value is tab.
* To specify a blank space, you can use `uplot bar -d ' ' data.txt`.
### Real-time data
* `-p` `--progress`
* Experimental progressive mode is currently under development.
* `ruby -e 'loop{puts rand(100)}' | uplot line --progress`
### Show detailed options for subcommands
* `--help`
* The `--help` option will show more detailed options for each subcommand.
* `uplot hist --help`
### Set columnss as x-axis or y-axis?
* YouPlot treats the first column as the X axis and the second column as the Y axis. When working with multiple series, the first column is the X axis, the second column is series Y1, the third column is series Y2, and so on.
* If you pass only one column of data for `line` and `bar`, YouPlot will automatically use a sequential number starting from 1 as the X-axis.
* `--fmt`
* `--fmt xyy` `--fmt xyxy` `--fmt yx` options give you a few more choices. See `youplot --help` for more details.
* The fmt option may be renamed in the future.
* The `-x` and `-y` options are currently used to specify labels `--xlabel` `--ylabel`, but may be used to specify columns in the future.
* Use `awk '{print $2, $1}'` to swap columns. Use `paste` to concatenate series.
## Tools that are useful to use with YouPlot
* [csvtk](https://github.com/shenwei356/csvtk)
* [GNU datamash](https://www.gnu.org/software/datamash/)
* [awk](https://www.gnu.org/software/gawk/)
* [xsv](https://github.com/BurntSushi/xsv)
## Contributing
YouPlot is a library under development, so even small improvements like typofix are welcome!
Please feel free to send us your pull requests.
* [Report bugs](https://github.com/red-data-tools/YouPlot/issues)
* Fix bugs and [submit pull requests](https://github.com/red-data-tools/YouPlot/pulls)
* Write, clarify, or fix documentation
* English corrections by native speakers are welcome.
* Suggest or add new features
* Make a donation
### Development
```sh
# fork the main repository by clicking the Fork button.
git clone https://github.com/your_name/YouPlot
bundle install # Install the gem dependencies
bundle exec rake test # Run the test
bundle exec rake install # Installation from source code
bundle exec exe/uplot # Run youplot (Try out the edited code)
```
### Acknowledgements
* [sampo grafiikka](https://jypg.net/sampo_grafiikka) - Project logo creation
* [yutaas](https://github.com/yutaas) - English proofreading
## License
[MIT License](https://opensource.org/licenses/MIT).