Dear all, Geomorphometry and Gradient Metrics Toolbox (GGMT) is a powerful tool. Thanks for Jeffrey�??s works! For to normalize raster data, I tried three ways: 1) Using raster calculator in ArcGIS, (x - mean) / stdv --> ( x - min(x) ) / ( max(x) - min(x) ) 2) Using GGMT, Statistics --> transformations --> normalize 3) Using GGMT, Statistics --> transformations --> standardize --> stretch 0~1 The new layers transformed through the three different ways are the same results. My question is following: Before running Species Distribution Models such as MaxEnt, I don't know whether to normalize, standardize, and rescale (0~1) the environmental raster layers is a necessary step. If that is necessary! How should I do that in GGMT? Thank you in advance for your assistance!
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