akrun questions

akrun answers

• dplyr mutate on column subset (one function on all these columns combined)
• Regex pattern questions in r
• group_by and pmap a piecewise operation on each row per group (ifelse vs case_when)
• How can I use the seq function on two columns in a dataframe?
• Match data.table/data.frame with matrix that partially matches
• extend data with data.table
• Using vectors inside dataframe columns in R
• R- New column based on present values from other columns
• Remove characters after dash in a mixed string in R
• Modify multiple columns of dataset by the same function in R