R: Edge size scales

scale_edge_size {ggraph} | R Documentation

## Edge size scales

### Description

This set of scales defines new size scales for edge geoms equivalent to the ones already defined by ggplot2. See `scale_size` for more information. The different geoms will know whether to use edge scales or the standard scales so it is not necessary to write `edge_size` in the call to the geom - just use `size`.

### Usage

    scale_edge_size_continuous(..., range = c(1, 6))

    scale_edge_radius(..., range = c(1, 6))

    scale_edge_size(..., range = c(1, 6))

    scale_edge_size_discrete(..., range = c(2, 6))

    scale_edge_size_area(..., max_size = 6)

    scale_edge_size_manual(..., values)

    scale_edge_size_identity(..., guide = "none")

### Arguments

`...` | Other arguments passed on to `continuous_scale` to control name, limits, breaks, labels and so forth.
`range` | a numeric vector of length 2 that specifies the minimum and maximum size of the plotting symbol after transformation.
`max_size` | Size of largest points.
`values` | a set of aesthetic values to map data values to. If this is a named vector, then the values will be matched based on the names. If unnamed, values will be matched in order (usually alphabetical) with the limits of the scale. Any data values that don't match will be given `na.value`.
`guide` | Name of guide object, or object itself.

### Value

A ggproto object inheriting from `Scale`

### Note

In ggplot2 size conflates both line width and point size into one scale. In ggraph there is also a width scale (`scale_edge_width`) that is used for linewidth. As edges are often represented by lines the width scale is the most common.

### See Also

Other scale_edge_*: `scale_edge_alpha`, `scale_edge_colour`, `scale_edge_fill`, `scale_edge_linetype`, `scale_edge_shape`, `scale_edge_width`, `scale_label_size`

[Package ggraph version 1.0.0 Index]