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</head><body><p>Hi all,<br>I'm new with GRASS GIS and I'm interesting to learn the use of r.fuzzy.* tools. I read Jasiewicz paper (A new Grass GIS fuzzy inference system for massive data analys) and I run r.fuzzy.system tool without error. Now I'm trying to understand the process step by step using r.fuzzy.set and r.fuzzy.logic. I produced membership raster with r.fuzzy.set but when I use its outputs to run r.fuzzy.logic I have the follow error: ERROR: <accum_abs_high_memb@PERMANENT> is not of type CELL. <br>The tool requires two input raster data and both are FCELL. I have no idea where can be the error, both input data are from r.fuzzy.set.<br>I'm running Grass GIS 7.2.1 in Window 10 and I'm using spearfish60_grass7 maps.<br></p><p>Thanks in advance.</p><p>Paola<br></p></body></html>