Top Questions

1. Filter by column index number data.table R
   3 votes

   5 answers
2. How to use cumsum but with condition if <0 then use 0
   3 votes

   2 answers
3. Count the number of occurrences of an event in the past 1 year
   2 votes

   2 answers
4. How to search upwards a column for a value based on whether another column is NA or not?
   1 votes

   2 answers