R: Pie chart

ggpie {ggpubr} | R Documentation

## Pie chart

### Description

Create a pie chart.

### Usage

    ggpie(data, x, label = x, lab.pos = c("out", "in"), lab.adjust = 0,
      lab.font = c(4, "bold", "black"), font.family = "", color = "black",
      fill = "white", palette = NULL, size = NULL, ggtheme = theme_pubr(),
      ...)

### Arguments

`data` | a data frame
`x` | variable containing values for drawing.
`label` | variable specifying the label of each slice.
`lab.pos` | character specifying the position for labels. Allowed values are "out" (for outside) or "in" (for inside).
`lab.adjust` | numeric value, used to adjust label position when lab.pos = "in". Increase or decrease this value to see the effect.
`lab.font` | a vector of length 3 indicating respectively the size (e.g.: 14), the style (e.g.: "plain", "bold", "italic", "bold.italic") and the color (e.g.: "red") of label font. For example lab.font= c(4, "bold", "red").
`font.family` | character vector specifying font family.
`color, fill` | outline and fill colors.
`palette` | the color palette to be used for coloring or filling by groups. Allowed values include "grey" for grey color palettes; brewer palettes e.g. "RdBu", "Blues", ...; or custom color palette e.g. c("blue", "red"); and scientific journal palettes from ggsci R package, e.g.: "npg", "aaas", "lancet", "jco", "ucscgb", "uchicago", "simpsons" and "rickandmorty".
`size` | Numeric value (e.g.: size = 1). change the size of points and outlines.
`ggtheme` | function, ggplot2 theme name. Default value is theme_pubr(). Allowed values include ggplot2 official themes: theme_gray(), theme_bw(), theme_minimal(), theme_classic(), theme_void(), ....
`...` | other arguments to be passed to be passed to ggpar().

### Details

The plot can be easily customized using the function ggpar(). Read ?ggpar for changing:

- main title and axis labels: main, xlab, ylab

- axis limits: xlim, ylim (e.g.: ylim = c(0, 30))

- axis scales: xscale, yscale (e.g.: yscale = "log2")

- color palettes: palette = "Dark2" or palette = c("gray", "blue", "red")

- legend title, labels and position: legend = "right"

- plot orientation : orientation = c("vertical", "horizontal", "reverse")

### See Also

`ggpar`, `ggline`

### Examples

    # Data: Create some data
    # +++++++++++++++++++++++++++++++

    df <- data.frame(
     group = c("Male", "Female", "Child"),
      value = c(25, 25, 50))

    head(df)

    # Basic pie charts
    # ++++++++++++++++++++++++++++++++

    ggpie(df, "value", label = "group")

    # Change color
    # ++++++++++++++++++++++++++++++++

    # Change fill color by group
    # set line color to white
    # Use custom color palette
     ggpie(df, "value", label = "group",
          fill = "group", color = "white",
           palette = c("#00AFBB", "#E7B800", "#FC4E07") )

    # Change label
    # ++++++++++++++++++++++++++++++++

    # Show group names and value as labels
    labs <- paste0(df$group, " (", df$value, "%)")
    ggpie(df, "value", label = labs,
       fill = "group", color = "white",
       palette = c("#00AFBB", "#E7B800", "#FC4E07"))

    # Change the position and font color of labels
    ggpie(df, "value", label = labs,
       lab.pos = "in", lab.font = "white",
       fill = "group", color = "white",
       palette = c("#00AFBB", "#E7B800", "#FC4E07"))

[Package ggpubr version 0.1.6 Index]