[GRASS-user] Image ratio

[Markus Neteler]

On Sat, Sep 28, 2013 at 8:56 AM, Vinay Elothunkal <vinay223333 at gmail.com> wrote:
> HI,
> How to do image rationing between two bands 5/2 of landsat in grass. I used
> this command ( r.mapcalc
> "ratio5_2=1.0*p126r046_7t20010929_z48_nn50/p126r046_7t20010929_z48_nn20"
>  d.erase
> d.rast ratio5_2)
> but it doesn't work

Could you elaborare on "it doesn't work"?

Markus