How to reclassify raster data by their sign?

المشرف العام

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I want to do the following: I have two data raster sets with different units and values. One results from measured metric data, the other from modelled grid values. What I want to compare is simply whether the data sets differ in where they show positive and negative values.

So - all negative data on both sets should be "-1", all data between -0.001 and 0.001 should be "0", and all positive values simply "1".

Do you have an idea how to do this best on ArcGIS 10? I suspect raster calculator...?



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