Aggregationg Columns

Row and Column Table Function in R R Data Frame Select INR Add Column IN R How to Delete a Column IN R R Column Names Matrix Function in R What R Column Get Sum of Column INR Column Index INR Tabulate Column R R Concatenate R Remove Column Concatenate Two Columns Numerical Column R R Code Subset Reorder Rows INR Adding a Column to a Data Frame Column Pricing R Code How to View Column Names in R R Cbind Function Merge Data Sets INR R Column Method Adittion As Data Frame R Delete a Column INR Formula R Dplyr Add Column to Data Frame Mean of Two Columns R Data Frame Example 2 Column Table