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My apologies if this is a repeat post, but i think my question did not get delivered last try. (I'm new here!)<div><br></div><div>I am looking for a way for GRASS to do create one output raster based on the analysis of say 100 rasters (same spatial coordanates, but each raster has an equal time interval between them). </div><div>For example if I have 100 rasters that have only 0's and 1's, and I want to calculate an output raster that shows how long it took each cell to first acquire a value of 1. Another example: sums up all 100 rasters to one output raster.</div><div><br></div><div>From what I've gathered, I think that r.mapcalc will do the necessary functions, but I cannot find an example where it is processing 100s of rasters in a temporal set.</div><div>Am I correct in assuming that r.mapcalc is the best solution for my problem? Are there other functions I should know about? Is there any examples that are similar to my problem? </div><div><br></div><div>Thank you for you advice</div><div>a.o. </div>                                            </body>
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