[GRASS-user] use grass to process data for R biomod

GRASS GRASS user
1

Hi,

I'm working on my paper, which i will use R package "biomod". In
biomod manual, i found it support such table format (other format? i
don't konw, i am a newer to R and grass).

Idw X Y Var1 Var2 Var3 Var4 Var5 Sp281 Sp191
73 -9.288 38.62 0.6683 4296 770.1 39.33 295.1 1 0
74 -9.292 39.52 0.7596 4174 928.1 57.32 348.7 0 1

- Idw: An Id to keep track of the row numbers
- X and Y: longitude and latitude of our sites (used for plotting)
- Var1 to Var5: Environmental variables (bioclimatic in that case)
- Sp281 Sp191: Presence/absence of 2 species.

I get the species data from web( shapefile format) and the
envirmonental data (Rast format).
For so far, i only kown "r.mapcalc new_var = if(var,env1)", so i can
get the env1 data when specie is presence,but this is not what i want.
so, someone can help me? give me some point, please.

2

Take a look at v.what.rast
It will upload raster values to an attribute table. That might do what you are looking for.

Daniel

On Mar 2, 2013 4:44 AM, “孔晓泉” <u1mail2me@gmail.com> wrote:

Hi,

I’m working on my paper, which i will use R package “biomod”. In
biomod manual, i found it support such table format (other format? i
don’t konw, i am a newer to R and grass).

Idw X Y Var1 Var2 Var3 Var4 Var5 Sp281 Sp191
73 -9.288 38.62 0.6683 4296 770.1 39.33 295.1 1 0
74 -9.292 39.52 0.7596 4174 928.1 57.32 348.7 0 1

  • Idw: An Id to keep track of the row numbers
  • X and Y: longitude and latitude of our sites (used for plotting)
  • Var1 to Var5: Environmental variables (bioclimatic in that case)
  • Sp281 Sp191: Presence/absence of 2 species.

I get the species data from web( shapefile format) and the
envirmonental data (Rast format).
For so far, i only kown “r.mapcalc new_var = if(var,env1)”, so i can
get the env1 data when specie is presence,but this is not what i want.
so, someone can help me? give me some point, please.

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