Ben questions

Ben answers

• Add row to dataframe based on condition of previous row in R
• Difference between two groups, data processing
• Cumulative points over year on map with R ggplot2 and ggplotly
• Labeling extrema with stat_peaks/stat_valleys produces duplicate labels
• Only Use The First Match For Every N Rows
• Problem with data frame transformation using dplyr package
• collapse only the 1st column of dataframe in R with remaining columns data intact
• Stacking multiple columns using pivot longer in R
• increment column records based on changes in other column in R
• R How to calculate "task time" for business hours only