further indices

[wegmann]

great package and highly needed.

the r.pi package in GRASS provides some additional indices which might be interesting for your package as well.
details can be found here:
http://onlinelibrary.wiley.com/doi/10.1111/2041-210X.12827/full
and here
https://grass.osgeo.org/grass74/manuals/addons/r.pi.html

regards, Martin

[bmsasilva]

thanks Martin, we'll look into it