Top Answers

1. Fill NAs in R with zero if the next valid data point is more than 2 intervals away
   8 votes
2. Index consecutive duplicates in vector
   8 votes
3. Use of tidyeval based non-standard evaluation in recode in right-hand side of mutate
   8 votes
4. Pass a data.table column name to a function using :=
   7 votes
5. Within the base packages, how can I generate the unique unordered pairs between two copies of a vector?
   7 votes