Andrew Gustar questions

Andrew Gustar answers

• speech-gaze activity plot in ggplot2
• Preventing wrong density plots when coloring histograms according to groups
• R: How to construct a repeated identity matrix
• Assign a vector element to another element in the same vector that is not itself (Secret Santa algorithm)
• Convert time don't work on a column's dataframe
• ggplot2 geom_line() arrow direction between specific values
• Substituting a substring with another string for each line of a dataframe in R
• geom_text(), plotmath, and %
• Human color spectrum for plot background
• Y axis doesn't display in R histogram of relative frequencies