Pipable ggplot2 layer data

A wrapper around data to be passed to the data argument of ggplot2::layer(). Pipe it into a ggbuilder layer to set the data used by that layer.

Usage

plot_data(data = NULL)

Arguments

data

One of:

• NULL: Use the data from the ggplot2() object.

• A function: apply this function to the data from the ggplot2() object when constructing the data for the layer.

• A data.frame(): use this data frame as the data for the layer.

Value

A ggbuilder plot_data, which can be piped into other ggbuilder functions. Can also be piped into dplyr and tidyr verbs in order to construct a new plot_data that will apply those verbs to the data.

Examples

library(ggplot2)

set.seed(123456)
df = data.frame(condition = c("A", "B", "C"), response = round(rnorm(30, 1:3), 1))

df |>
ggplot(aes(x = condition, y = response, color = condition)) +
  geom_boxplot() +
  plot_data(\(x) x[x$condition %in% c("B", "C"),]) |>
    stat_("boxplot", aes(y = response)) |>
    geom_("label", aes(y = ymax, label = ymax))


df |>
  ggplot(aes(x = condition, y = response, color = condition)) +
  geom_boxplot() +
  plot_data() |>
    dplyr::filter(condition %in% c("B", "C")) |>
    dplyr::group_by(condition) |>
    dplyr::slice_max(response) |>
    geom_("label", aes(label = response))