pieGlyph {Rgraphviz} | R Documentation

## A function to plot pie graphs as a glyph

### Description

This function allows the user to plot a pie graph at a specified x/y location in a plotting region.

### Usage

    pieGlyph(x, xpos, ypos, labels = names(x), edges = 200, radius = 0.8, density = NULL, angle = 45, col = NULL, border = NULL, lty = NULL, main = NULL, ...)

### Arguments

`xpos` | The x location of the glyph
`ypos` | The Y location of the glyph
`x` | a vector of positive quantities. The values in `x` are displayed as the areas of pie slices.
`labels` | a vector of character strings giving names for the slices. For empty or NA labels, no pointing line is drawn either.
`edges` | the circular outline of the pie is approximated by a polygon with this many edges.
`radius` | the pie is drawn centered in a square box whose sides range from -1 to 1. If the character strings labeling the slices are long it may be necessary to use a smaller radius.
`density` | the density of shading lines, in lines per inch. The default value of `NULL` means that no shading lines are drawn. Non-positive values of `density` also inhibit the drawing of shading lines.
`angle` | the slope of shading lines, given as an angle in degrees (counter-clockwise).
`col` | a vector of colors to be used in filling or shading the slices. If missing a set of 6 pastel colours is used, unless `density` is specified when `par("fg")` is used.
`border, lty` | (possibly vectors) arguments passed to `polygon` which draws each slice.
`main` | an overall title for the plot.
`...` | graphical parameters can be given as arguments to `pie`. They will affect the main title and labels only.

### Author(s)

R. Gentleman, F. Sim

### See Also

`pie`

### Examples

       plot(1:10, col="white")
       pieGlyph(1:20, 5, 5)

[Package Rgraphviz version 2.28.0 Index]