This is a particularly hairy example of comparative program performance that needed to take into account: (a) program consolidations, (b) shifting departmental oversight, (b) school name changes, (c) sliding test score ranges, (d) and a host of other data idiosyncrasies. This code takes a days-long manual cleaning process and reduces it to about 5 minutes. It’s a non-destructive process that maintains the original file. Additionally, the entire process is documented within the code.