Usage

Form a configuration file using the the sections you want and save this to config.ini e.g.

[hand_hardness]
filename: hand_hardness.txt

[output]
filename: figure.png

Where the hand_hardness.txt file has:

140-120 = F,F+
120-90 = 4F
90-50 = 1F
50-0 = p

Then run snowplot on your config file in the commandline:

snowplot config.ini

This will produce the following image: