if output is scaled, added calculation of r-squared from np.linalg.lstsq RSS values; if output is scaled, fixed incorrect clipping and scaling of endmembers; updated inputsignatures default training values; comments cleanup
if output is scaled, added calculation of r-squared from np.linalg.lstsq RSS values; if output is scaled, fixed incorrect clipping and scaling of endmembers; updated inputsignatures default training values; comments cleanup

Esri/raster-functions