output figures display at terminal

[crazyhottommy]

Hi shenwei,

Thanks for this nice tool. I really like the plot functions.

It will be more useful if it can be piped to display from imagemagic to display on terminal rather saving the figures. see some examples http://crazyhottommy.blogspot.com/2014/11/csvkit-to-manipulate-csv-at-command.html. Most of the time, I just want to glance the distribution of the data. If I want serious figures, I will import to R and plot with ggplot2.

Best,
Tommy

[shenwei356]

Hi Tommy,

Output image file could be set by global flag -o/--out-file of csvtk .

Help message of csvtk plot:

plot common figures

Notes:

  1. File format is determined by the out file (-o/--out-file) suffix.
     Supported formats: eps, jpg|jpeg, pdf, png, svg, and tif|tiff

Usage:
  csvtk plot [command]

Available Commands:
  box         plot boxplot
  hist        plot histogram
  line        line plot and scatter plot

Flags:
      --axis-width float     axis width (default 1.5)
  -f, --data-field string    column index or column name of data (default "1")
  -g, --group-field string   column index or column name of group
      --height float         Figure height (default 4.5)
      --label-size int       label font size (default 14)
      --tick-width float     axis tick width (default 1.5)
      --title string         Figure title
      --title-size int       title font size (default 16)
      --width float          Figure width (default 6)
      --x-max string         maximum value of X axis
      --x-min string         minimum value of X axis
      --xlab string          x label text
      --y-max string         maximum value of Y axis
      --y-min string         minimum value of Y axis
      --ylab string          y label text

[crazyhottommy]

I want to do something like:

csvtk -t plot hist grouped_data.tsv.gz -f2 -o - | display
display: no decode delegate for this image format `' @ error/constitute.c/ReadImage/501.

see https://www.imagemagick.org/script/command-line-processing.php

[shenwei356]

It's implemented, and I'll release a new version until I fix a bug of other subcommand.

[crazyhottommy]

great and thanks!

Now it looks like after

csvtk -t plot hist grouped_data.tsv.gz -f2 -o - 

A histogram.png file will still be generated rather than output to the STDOUT.

[shenwei356]

Implemented in new version v0.4.2

csvtk -t plot hist grouped_data.tsv.gz -f2 | display

[crazyhottommy]

nicely worked for me! great.