The plotting capabilities of MATLAB leave much to be desired. Right now the python matplotlib library has my attention, but I wanted to ask those of you on Graphic Design if you had any other suggestions for data visualization tools before deciding to dive deep into the world of SciPy/Numpy/matplotlib.
Most desired features: --Vector output --Graphics produced programmatically, not using a GUI
Bonus points for anything that handles Ternary plots out-of-the-box.