Top Questions

1. Selecting the first positive event
   5 votes

   6 answers
2. Numerical problems with qnorm
   4 votes

   1 answers
3. Transform each column factors in a column containing just `0` or `1`
   4 votes

   4 answers
4. Count number of character and their position until a value is reached
   3 votes

   3 answers
5. How to merge by two columns aggregating one of them
   3 votes

   1 answers