Questions tagged [r.mapcalc]

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r.mapcalculator

I am using QGIS 2.18.25. I'm struggling to use r.mapcalc to calculate the ndvi for a workbook project. R.mapcalculator is shown on the workbook I'm using and seems simpler to use. Is there a plug-in ...
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Purpose of comma in r.mapcalc in GRASS GIS 7.4

I would like to know the purpose of a comma in r.mapcalc of GRASS GIS. Consider this example - r.mapcalc "noise = if(landuse96_28m==1 || landuse96_28m==2, roads_buffers, null())" In the above ...
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Converting 0 values to 1 in QGIS 3 using r.mapcalc GUI

I'm using GRASS 7.4.1 in QGIS 3.2 and would like to change 0 values of a slope raster to 1. I've been following this video tutorial and my r.mapcalc function looks exactly the same. However the output ...