Luke questions

• Creating a matrix with matching x and y labels for columns and rows
• In ggplot2 for R, how do I reverse the order of the bar colors?
• In R, how do I add a max by group? [duplicate]
• How do I create binned factor variables from a continuous variable, with custom breaks?
• Cumulative sequence of occurrences of values [duplicate]
• What's the best way to replace missing values with NA when reading in a .csv?
• Change the color of the axis labels

Luke answers