Top Answers

1. Melt a dataframe by different column names
   3 votes
2. How to swap the column and row entries in R
   3 votes
3. R: reshaping data frame - add column(s), while keeping row index values consistent
   2 votes
4. Create new column based on other columns and date conditioning
   2 votes
5. Replace the subsetted and modified data back into the main dataframe
   2 votes