I had a csv dataset comprising of regular points containing elevation "z-values". I interpolated this using ESRI´s spatial analyst using the IDW method to produce a continuous raster surface. I set the resolution at 12,5 meters, because the points were 12,5 meters apart.
I now have a raster image which gives me values with 5 decimal places. The original data only had 2 decimal places.
My question is...should I round this up to 2 decimal places, because having this level of accuracy doesn´t reflect the absolute accuracy of the image. If I should round up the values, how/with which tool would I do it?