Re: [GRASS-user] GRASS7.4 TGRASS parse error while mapcalc computatio

2018-02-21 Thread Markus Neteler
On Wed, Feb 21, 2018 at 1:21 PM, Martin Landa wrote: > 2018-02-21 12:57 GMT+01:00 Anika Bettge : >> I use TGRASS to calculate a NDVI. > > btw, recently I was doing something similar in Jena GRASS GIS workshop, see > [1]. > >> GRASS 7.4.0 (accra32630):~ > t.rast.mapcalc input=b4,b8 output=test1 >>

Re: [GRASS-user] GRASS7.4 TGRASS parse error while mapcalc computatio

2018-02-21 Thread Martin Landa
Hi, 2018-02-21 12:57 GMT+01:00 Anika Bettge : > I use TGRASS to calculate a NDVI. btw, recently I was doing something similar in Jena GRASS GIS workshop, see [1]. > GRASS 7.4.0 (accra32630):~ > t.rast.mapcalc input=b4,b8 output=test1 > expression="test1 = float(b8 + b4)" basename=test1 --overwr

[GRASS-user] GRASS7.4 TGRASS parse error while mapcalc computatio

2018-02-21 Thread Anika Bettge
Dear list, I use TGRASS to calculate a NDVI. For this I generate two space time raster datasets of the red (b4) and nir (b8) bands. When I try to calculate with b4 and b8 I get a Parse Error: GRASS 7.4.0 (accra32630):~ > t.rast.list input=b4 name|mapset|start_time|end_time S2_0e76f09b_d221_4e