Quick-plot data from text file.
A simple Python script for plotting data from the command line.
For easier usage, put the code in your favorite directory (e.g. ~/myFavDir/),
and then add the following line in your startup configuration file
(e.g. .bash_profile or .zshrc):
alias plotdat="python ~/myFavDir/plotdat.py"
If you're using csh or tcsh, your config file is called .cshrc, and you should omit the =:
alias plotdat "python ~/myFavDir/plotdat.py"
If you don't know which shell you're using, check with
> echo $SHELL
If you have added the line above, use the examples below as written. Otherwise, instead of just plotdat, you should write python plotdat.py:
Plot column 2 vs. column 1 in a text file file.dat:
> plotdat file.dat
Make a scatter plot of column 4 vs. column 1 with a logarithmic x axis, using the header as labels:
> plotdat file.dat -s -l -ycol 3 -xlog
Note that the syntax for "column 4" is -ycol 3, as is standard for Python.
Get help
> plotdat -h