geom_pointrange
geom_pointrange(mapping=NULL, data=NULL, stat="identity", position="identity", ...)
An interval represented by a vertical line, with a point in the middle
This page describes geom_pointrange, see layer and qplot for how to create a complete plot from individual components.
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Aesthetics
The following aesthetics can be used with geom_pointrange. Aesthetics are mapped to variables in the data with the aes function: geom_pointrange(aes(x = var)). Note that you do not need quotes around the variable name.
Scales control how the variable is mapped to the aesthetic and are listed after each aesthetic.
| Aesthetic | Default | Related scales |
|---|---|---|
| x | required | continuous, date, datetime, discrete |
| y | required | continuous, date, datetime, discrete |
| ymin | required | |
| ymax | required | |
| colour | black | brewer, gradient, gradient2, gradientn, grey, hue, identity, manual |
| size | 0.5 | identity, manual, size |
| linetype | 1 | identity, linetype, manual |
| shape | 16 | identity, manual, shape |
| fill | NA | brewer, gradient, gradient2, gradientn, grey, hue, identity, manual |
| alpha | 1 |
Layers are divided into groups by the group aesthetic. By default this is set to the interaction of all categorical variables present in the plot.
Parameters
Parameters control the appearance of the geom. In addition to the parameters listed below (if any), any aesthetic can be used as a parameter, in which case it will override any aesthetic mapping.
Returns
This function returns a layer object.
See also
- geom_errorbar: error bars
- geom_linerange: range indicated by straight line, + examples
- geom_crossbar: hollow bar with middle indicated by horizontal line
- stat_summary: examples of these guys in use
- geom_smooth: for continuous analog
Examples
> # See geom_linerange for examples
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