Section 15 Graphics parameter: shape

The ggplot2 graphics parameter shape is equivalent to the base graphics parameter pch.

The ggplot2 graphics parameter size is equivalent to the base graphics parameter cex.

15.1 shape

• The option shape defines the symbol to use.

• This can either be a single character or an integer code for one of a set of graphics symbols.

15.2 ggplot2 shape by Number