I forgot to mention that I am using GRASS 7.1 (rev 61757, had it before with rev 61413, but I think I had a similar problem about a year ago).
On Wed, Aug 27, 2014 at 10:13 AM, Paulo van Breugel <p.vanbreu...@gmail.com> wrote: > When running several r.mapcalc in a loop (via R) the function stops with > an error: > > ERROR: Error reading null row 2725 for <MASK> > > The row number varies. This seems to happen at random, and when I repeat > the same r.mapcalc calculation that stopped with the error before, things > run without problem. > > I tried after removing the mask, and this time no problem so it may have > to do something with the MASK? (as these error messages only occur once in > a while, I can't be completely sure it only happens when a MASK is defined). > > I ran it through R, using the execGRASS() function of the spgrass6 > package. I ran the same, but using the system call instead of execGRASS. > Still got the same error messages. I therefore guess this has nothing to do > with R? >
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