I'm dealing with a very large dataset and I need to make sure I code this. I recently have been trying out your "PreprocessLandsatSeries.pro" IDL script, and changing only necessary parameters with very similar inputs (changing only the input rasters (Landsat 1 to 5) filepaths and using DarkSubtraction function instead of QUAC task) and the result is that it keeps reiterating the very same year in the temp files as well as the Export files. Please help me understand why this is doing this. I do not see any error in the logic.



Thank you.

Can you post your code? It is also helpful to add in 'print' statements in your code so you can see if the results are what you expect. For example, if you are having trouble getting unique output names in your loop, you can do a print on the 'year' and 'outfile' parameters to see if you are extracting the name you expect.