Clustered/Stacked Filled Bar Graph Generator

I wanted a scriptable bar graph generator for my PhD thesis that supported stacked and clustered bars, but couldn't find one that played well with latex and had all the features I wanted, so I built my own. I followed the scheme of Graham Williams' barchart shell script to have gnuplot produce fig output and then mangle it to fill in the bars. I added support for more than just two or three clustered datasets and support for stacked bars, as well as automatic averaging and other features.

The primary features include:

Stacked bars of 9+ datasets
Clustered bars of 8+ datasets
Clusters of stacked bars
Lets you keep your data in table format, or separated but listed in the same file, rather than requiring each dataset to be in a separate file
Custom gnuplot command pass-through for fine-grained customization without having a separate tool chain step outside the script
Bars can be pattern filled or use solid colors
Font face control and limited font size control
Automatic arithmetic or harmonic mean calculation
Automatic legend creation
Automatic legend placement in empty space inside the graph
Automatic sorting, including sorting into SPEC CPU 2000 integer and floating point benchmark groups
Error bar support

The official project home page with documentation and examples is at http://www.burningcutlery.com/derek/bargraph/