I have two list of variables, they are the same metrics, but from different point of time, right now I want to calculate the difference between them, the dataset looks like this: account fico_201701 beacon_201701 dpd_201701 fico_201712 beacon_201712 dpd_201712 I want to calculate difference between fico_201701 and fico_201712/ beacon_201701 and beacon_201712 and etc, how do I program for it? Thanks!
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