将值从行[i]移动到行[i+1]，以一个公共索引为条件。

I would like to copy certain values in one row and return them to a different row conditioned upon common factors. Here, in each trial there are two individuals (a subject and an opponent), and I have data recorded for the subject only. I want to "invert" the data for the subject and paste that into the appropriate row--namely, where the subject was the opponent. I would like to copy certain values in one row