xPieplot {Pi} | R Documentation

## Function to visualise data frame using pie plots

### Description

`xPieplot` is supposed to visualise data frame using pie plots. It returns an object of class "ggplot".

### Usage

    xPieplot(
    df,
    columns,
    colormap = "ggplot2",
    pie.radius = NULL,
    pie.color = "transparent",
    pie.color.alpha = 1,
    pie.thick = 0.1,
    legend.title = "",
    gp = NULL
    )

### Arguments

`df` | a data frame
`columns` | a vector containing column names of the input data frame. These columns are used to draw pie charts
`colormap` | short name for the colormap. It can be one of "jet" (jet colormap), "bwr" (blue-white-red colormap), "gbr" (green-black-red colormap), "wyr" (white-yellow-red colormap), "br" (black-red colormap), "yr" (yellow-red colormap), "wb" (white-black colormap), "rainbow" (rainbow colormap, that is, red-yellow-green-cyan-blue-magenta), and "ggplot2" (emulating ggplot2 default color palette). Alternatively, any hyphen-separated HTML color names, e.g. "lightyellow-orange" (by default), "blue-black-yellow", "royalblue-white-sandybrown", "darkgreen-white-darkviolet". A list of standard color names can be found in http://html-color-codes.info/color-names
`pie.radius` | the radius of a pie. If NULL, it equals roughly 1/75
`pie.color` | the border color of a pie
`pie.color.alpha` | the 0-1 value specifying transparency of pie border colors
`pie.thick` | the pie border thickness
`legend.title` | the legend title
`gp` | an existing ggplot object or NULL. It is used for overlapping

### Value

a ggplot object.

### See Also

`xColormap`

### Examples

    RData.location <- "http://galahad.well.ox.ac.uk/bigdata"
    ## Not run:
    gp <- xPieplot(df,
    columns=c('dGene','pGene','fGene','nGene','eGene','cGene'),
    legend.title='Seeds')

    ## End(Not run)

[Package Pi version 2.2.1 Index]