Top Questions

1. subset by date in R within each year
   3 votes

   1 answers
2. Subset data from the latest date prior to a specified date per group
   2 votes

   1 answers
3. Calculate number of days passed since previous date within each group
   1 votes

   2 answers
4. Replace NAs with the outcome of an equation for each group
   1 votes

   2 answers
5. Calculate the mean number of days between dates per group
   1 votes

   1 answers