I am using ArcGIS 10.2. Whenever I reclassify a raster layer I get the following message:
Unique values cannot be obtained from raster, using values from dialog
This does not prevent from proceeding with the reclassification. I found that if I convert the data to integer prior to reclassification, I do not receive this message.
However, I do not want to convert all my data to integer, especially since I am using data which is represented by values of less than one, hence needing the additional step of multiplying the rasters by 1000 before integrating them.
What does this error message mean? Can I just ignore it? Does it affect the accuracy of the reclassifications?