[GRASS-dev] Use of r.mapcalc vs i.vi inside a script

GRASS GIS GRASS GIS developer
1

Dear developers,

this is a question related to performance, I think. Is it better to
prefer r.mapcalc or use i.vi to derive the NDVI inside a python
script?

Thank you, Nikos

2

Hi Nikos,

On Sun, Apr 19, 2015 at 6:53 PM, Nikos Alexandris
<nik@nikosalexandris.net> wrote:

Dear developers,

this is a question related to performance, I think. Is it better to
prefer r.mapcalc or use i.vi to derive the NDVI inside a python
script?

since there are many factors influencing it, you may have to benchmark it.
Please report it in case.

Markus