Make a Pie Chart

Make a Pie Chart

plotPieChart(
  value,
  group,
  legendName = deparse(substitute(group)),
  legendLabels = if (is.factor(group)) levels(group) else unique(group),
  legendColors = NULL,
  showAxisText = TRUE,
  showAxisTicks = showAxisText,
  asPercentages = TRUE,
  palette = getGraphOption("palette"),
  ...
)

Arguments

value

The value for each group.

group

Character of factor that indicates which value belongs to which group.

legendName

Character, title of the legend.

legendLabels

Character vector with names for the legend.

legendColors

Character vector with colors.

showAxisText

Logical, should the axis text be shown?

showAxisTicks

Logical, should the ticks on the polar coordinates be shown?

asPercentages

Logical, should value be transformed to percentages? Recommended to be true.

palette

Character vector with palette name. If this option is set then legendColors is ignored. If palette is NULL then legendColors are used.

...

Arguments to be passed to themeJasp.

Value

a ggplot object.

Examples

library(ggplot2)
value <- c(25, 25, 50)
gg <- letters[1:3]
ga <- letters[4:6]

g <- plotPieChart(value, gg)
print(g)

plotPieChart(value, gg, ga)

plotPieChart(value, gg, ga, showAxisTicks = FALSE)

plotPieChart(value, gg, ga, showAxisTicks = FALSE, legend.position = "none") # hide the legend


# axis can still be modified
print(g + scale_y_continuous(breaks = c(50, 75, 0)))

print(g + scale_y_continuous(breaks = seq(0, 100, 10)))

cm <- c(0, cumsum(value))
breaks <- 100 - (cm[-1] + cm[-length(cm)]) / 2
print(g + scale_y_continuous(breaks = breaks, labels = gg))


# something more extreme:
value <- rpois(25, 10)
g <- as.character(seq_len(25))
plotPieChart(value, g)