Hi, In the last few revisions of GRASS GIS 7.0 (on Ubuntu 13.04) I am experiencing this seemingly random errors with r.mapcalc. For example:
Running the following r.mapcalc computation gave me an ERROR: GRASS 7.0.svn (AEA):~ > r.mapcalc --overwrite "glc_influence = if(IIASA_crops==100,8.0, if((glc_change5 + glc_change6)==100, 4.0*IIASArev + 8.0*IIASA_crops/100.0, (glc_change1*IIASArev + 2.0*glc_change2*IIASArev + 3.0*glc_change3*IIASArev + 4.0*glc_change4*IIASArev + glc_div + 8.0*IIASA_crops) / 100.0))" --overwrite ERROR: Error reading raster data [Raster MASK present] Rerunning the same, and it goes through fine: GRASS 7.0.svn (AEA):~ > r.mapcalc --overwrite "glc_influence = if(IIASA_crops==100,8.0, if((glc_change5 + glc_change6)==100, 4.0*IIASArev + 8.0*IIASA_crops/100.0, (glc_change1*IIASArev + 2.0*glc_change2*IIASArev + 3.0*glc_change3*IIASArev + 4.0*glc_change4*IIASArev + glc_div + 8.0*IIASA_crops) / 100.0))" --overwrite 100% [Raster MASK present] This is not always the second time, sometimes it runs fine the first time, but doesn't the second time, or it only runs fine the third time. Initially I though it such errors are more likely to happen when the equation includes double precision / floating rasters and integer rasters. But in the example above all layers were converted to double precision first. I am really puzzled as to what is going on here. Any idea what I am doing wrong here or what could be the cause? Rgds Paulo
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