Transposing from WIDE to LONG and a formula question
Hi--two somewhat related questionsI have used SPLIT to transform a long file to a wide file, but I have a slightly more complicated situation where I want to STACK/transpose a wide file to a long file. I have a dataset with a unique subject ID, and then several hundred columns/variables. The variable names are the exact same with the exception that Year 1 ends '2', Year 2 ends in '3', etc. Is ther...