davsjob questions

davsjob answers

• R - find and list duplicate rows based on two columns
• Finding the max of a R dataframe column ignoring -Inf and NA
• How to specify custom return value for Max, Min in R for empty input (instead of the default +Inf and -Inf)?
• How to convert factor to numeric in R without NAs introduced by coercion warning message
• How to convert NUM to INT in R?