Eumenedies questions

Eumenedies answers

• Alpha ggplot2 not working when inside a for loop structure
• Create a list from Tibble Columns
• ggplot add text inside each tile of geom tile
• Extract column name in mutate_if call
• Find difference between grouped values in dplyr
• Color points by their occurrence count in ggplot2 geom_count
• Execute dplyr operation only if column exists
• R: facet_wrap does not render correctly with ggplotly in Shiny app