Annemarie questions

• "dims [product 0] do not match the length of object" error in R when using daply for frequency counts
• Creating nonsense words - using outer() with three+ dimensions in R
• plotting label names onto 3D plot generated by plot3d (rgl)
• Making a stacked bar plot for multiple variables - ggplot2 in R
• Using grep in R to delete rows from a data.frame

Annemarie answers