Paul questions

Paul answers

• creating a square matrix from a data frame [duplicate]
• Is there a way to add an alpha value within geom_image in ggplot?
• In R, how can I print the name of an object reliably from a custom print function?
• How to shade shapes
• Passing arguments to R script in command line (shell/bash): what to do when column names contain tilde (~)
• Add titles to ggplots created with map()
• How to convert an image into point data for ggplot2 scatterplot
• Apply over nested list names: Sub out character in nested list names
• Which tidyverse functions return tibbles?
• Error in bind_rows_(x, .id) : Argument 1 must have names using map_df in purrr