Top Questions

1. Matrix: Summing columns and rows conditional on variable name
   3 votes

   3 answers
2. Importing multiple excel sheets into one dataframe adding the sheet name as variable
   1 votes

   5 answers
3. Summing columns conditional on matches with the value of the first column
   1 votes

   3 answers
4. Loading muliplte .rdata files into one dataframe
   1 votes

   2 answers