Agriculture data set. Need to rename all similar pens 1 and 3 into treatment = A and rename all similar pens 2 and 4 into treatment = B. Treatment would be a new column. How do I setup up this code? It seems like it would be simple, but I am struggling. Thanks! Pen 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4 4
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