Hi Micha, About:
*Not sure I understand the logic of taking the highest value * This was defined by an agronomist, I also do not understand why =/ However, your answer is exactly what I need, did not know r.series, thank you! If you can help me also in this tip, I would be very grateful, I'm reclassifying the slope as follows: r.mapcalc class_1 = 'if(slope <= 2.0, 1, null())' r.mapcalc class_2 = 'if(2.0 < slope <= 5, 2, null())' r.mapcalc class_3 = 'if(5 < slope <= 10, 3, null())' r.mapcalc class_4 = 'if(10 < slope <= 15, 4, null())' r.mapcalc class_5 = 'if(15 < slope <= 45, 5, null())' r.mapcalc class_6 = 'if(45 < slope <= 70, 6, null())' r.mapcalc class_7 = 'if(slope > 70, 7, null())' r.mapcalc slope.reclass = class_1 + class_2 + class_3 + class_4 + class_5 + class_6 + class_7 How do I create a single expression for this problem? Regards -- *Marcello Benigno B. de Barros Filho* Prof. do Curso Superior de Tecnologia em Geoprocessamento - IFPB Mestre em Ciências Geodésicas e Tecnologias da Geoinformação - UFPE Doutorando em Tecnologia Ambiental e Recursos Hídricos - UFPE http://profmarcello.blogspot.com http://about.me/marcello.benigno
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