Top Questions

1. R - How to operate on different columns for each row based on an extra-column containing the names of the columns to be used for operation
   3 votes

   4 answers
2. R Finding the maximum value in subsets of observations without using summarise or filter
   2 votes

   3 answers
3. R: mixed models - how to predict a variable using previous values of this same variable
   2 votes

   1 answers
4. R how to obtain the mean of previous values depending on a second column with data in long format
   1 votes

   1 answers