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Day 22: PROC TRANSPOSE — SAS vs R

Reshape clinical data long to wide and back with SAS and tidyr

Practice PROC TRANSPOSE against pivot_wider() and pivot_longer(): BY/ID/VAR mapping, _NAME_ and _LABEL_, PREFIX= and SUFFIX=, several keys, wide to long with arrays, IDLABEL, and duplicate ID values, using VS, LB, QS and ADVS.