Simple Pie and Bar chart creation

Features

The piebar program aims to simplify the creation of pie and bar charts from command line or shell scripts. You just give your series of data on standard input, and voilà !

• very easy to use
• 6 types of charts (pie charts, grouped bars with one or two keys, stacked bar from one to three keys)
• customisable title, legends or colors
• reasonable defaults
• output various formats (PDF, PNG, SVG, etc.)
• relies on matplotlib only, no other dependencies
• program is contained in one single Python file
• program is easy to install or to run without installing it

Manual

PDF manual page is available here.

Gallery

Pie charts

File used in these examples: https://gitlab.com/pdagog/piebar/-/blob/main/sales1.dat

Sales by product

piebar -o gal-pie1.svg -t "Sales by product" pie -s -25 < sales1.dat

Sales by product with custom colors

piebar -o gal-pie1custom.svg -t "Sales by product with custom colors" pie -s -25 "Product A|cadetblue" "Product B|khaki" "Product C|seagreen" "Product D|lightcoral" < sales1.dat

Bar charts with one key

File used in these examples: https://gitlab.com/pdagog/piebar/-/blob/main/sales1.dat

Sales by product

piebar -o gal-bar1.svg -t "Sales by product" bar < sales1.dat

Sales by product wih custom colors and a grid

piebar -o gal-bar1custom.svg -t "Sales by product with custom colors" bar -g "Product A|cadetblue" "Product B|khaki" "Product C|seagreen" "Product D|lightcoral" < sales1.dat

Sales by product wih stacked bars

piebar -o gal-bar1stack.svg -t "Sales by product, stacked" bar -s < sales1.dat

Sales by product wih stacked bars, custom colors and a grid

piebar -o gal-bar1stackcustom.svg -t "Sales by product with custom colors" bar -s "Product A|cadetblue" "Product B|khaki" "Product C|seagreen" "Product D|lightcoral" < sales1.dat

Bar charts with two keys

File used in these examples: https://gitlab.com/pdagog/piebar/-/blob/main/sales2.dat

Sales by product and quarter

piebar -o gal-bar2.svg -t "Sales by product and quarter" bar < sales2.dat

Sales by product, stacked by quarter

piebar -o gal-bar2stack.svg -t "Sales by product, stacked by quarter (with custom colors)" bar -s "Q1|lightblue" "Q2|gold" < sales2.dat

Bar charts with three keys

File used in this example: https://gitlab.com/pdagog/piebar/-/blob/main/sales3.dat

Sales by product, quarter and region

piebar -o gal-bar3.svg -t "Sales by product, quarter (left: Q1, right: Q2) and region" bar < sales3.dat

Releases

• Release 1.0dev:
  • Add the -g option to display a grid on Y axis
  • Remove redundant green in default colors
• Release 0.9:
  • Initial version