function to do a multiplot in r which function determines layout in r r cookbook error: aesthetics must either be length one... which r function makes two plots how to make plots in r multiplot definition in r r multiplot function r cookbook error 'aesthetics must either be length one' r multiplot function what is the r cookbook error in ls plot r multiplot ls number of plots what is multiplot in r r cookbook error 'assessment must be length one...' r multiplot how to get layout how to make r plot in ggplot 2 what is multiplot in r r calculating layout how to find plots in r multiplot r cookbook error r cookbook error 'aesthetics must either be length one...