I added some more plotting functions, including scripts for a random noised DTI model (q/ GQI plots) and an unnoised DTI, and one for continually showing many noised DTIs with GQI recon.
I added many functions for plotting and computing GQI odfs, with either noised or unnoised simulated or real data.  Simulations use DTI with a specified mean ADC and Fractional Anisotropy.  I also have functions for computing relative eigenvalues from the fractional anisotropy.