fun guide_legend(nrow: Int? = null, ncol: Int? = null, byRow: Boolean? = null): Map<String, Any>
Legend guide. Legend type guide shows key (i.e., geoms) mapped onto values.
nrow - A number of rows in legend's guide
nrow
ncol - A number of columns in legend's guide
ncol
byRow - A type of output: by row (default), or by column
byRow