Paste your code into a code block, it isn't long. If you want to figure out what it does, go through it line by line and add comments to what you think each line is doing. Then go through it again block by block to isolate what each block is doing. I think this is an old method of moving regression, if you have SAS/ETS license this may not be required. The code isn't particularly complex but this is typically where you would hire a consultant or SAS programmer for your conversion process. ... View more