virtualjon

Classifying raster data values

Discussion created by virtualjon on Jan 21, 2013
I have several large single band thematic raster layers that I want to reclassify into groups.

I would like to split each raster's cells into 10 groups. I want each group to represent 10% of the range of values inside the raster layer.  I would also like to repeat this so that each of the 10 groups contains 10% of the cells in the raster.

I can see that the values and break points for the 10 classes can be obtained by working with the Symbology>Classified section of the raster's properties but I wondered if there was a better tool for analysing and exploring the data (even a seperate programme) before I go ahead and actually reclassify the values in Spatial Analyst. 

Any advice greatly appreciated.

thanks !

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