Top Questions

1. Return TRUE/FALSE if common elements/no common elements between vectors
   3 votes

   6 answers
2. Transpose specified columns columns to rows with grouped data
   2 votes

   4 answers
3. Spread values based on start-date/end-date
   2 votes

   3 answers
4. Mutate a transposed column into new columns row-wise by group
   2 votes

   1 answers
5. How do I populate upper.tri of matrix with matched integers from the lower.tri?
   2 votes

   2 answers