I would like to do a weighted overlay of different raster datasets. I would like my evaluation scale to be from 1 to 10 with 0.1 as the incremental value. This way for example a criteria could have the value 1.2. So far ArcGIS does not let me enter decimal points. Any ideas how I can solve this?
Do a weighted overlay with scale from 1 - 100 and then rescale with raster calculator? if the scale is 1 - 100 then you rescale something like [(grid - min value from grid) * (max scale value - min scale value) / (max value from grid - min value from grid)] + min scale value to 1 - 10 but somewhere in there you will need to specify decimals, maybe a weighted sum would be better