Top Questions

1. Replace all values with first observation by group
   5 votes

   6 answers
2. splitting up dates that include characters
   3 votes

   2 answers
3. identify unique values of 2 data frames in R
   2 votes

   3 answers
4. problem with using coalesce to merge 2 columns into 1
   2 votes

   3 answers
5. count of variable values across columns in a dataframe
   2 votes

   1 answers