Steve questions

• Remove rows of a dataframe that match a factor level (and then plot the data excluding that factor level)
• Create a similarity matrix of integers, using R
• Reduced major axis line and CI for ggplot in R
• Transform a 3D array into a matrix in R
• Correlation significance for non-zero null hypothesis using R
• Paste together two data frames element by element in R
• Order data frame by two columns in R
• Permute all unique enumerations of a vector in R
• Stacked bar chart in R (ggplot2) with y axis and bars as percentage of counts
• Variable width bars in ggplot2 barplot in R

Steve answers