Skip to contents

Redundant shape encoding

Source: R/plots-design.R
cr_shapes.Rd

Returns plotting symbols matched to cr_palette(), so that a grouping encoded by hue is also encoded by shape. Filled shapes (21:25, which take both a colour and a fill) come first, then open shapes.

Usage

cr_shapes(n = NULL, names = NULL)

Arguments

n

Number of shapes to return. NULL (default) returns all 10. Requesting more recycles and warns, because shape has then stopped separating the levels.

names

Optional character vector of names to attach, for use as the values argument of ggplot2::scale_shape_manual().

Value

An integer vector of ggplot2 shape codes.

See also

cr_palette(), cr_scale_group()

Other plot design: cr_palette(), cr_scale_group(), cr_theme()

Examples

cr_shapes(4)
#> [1] 21 22 23 24
cr_shapes(3, names = c("low", "mid", "high"))
#>  low  mid high 
#>   21   22   23