bar_error: Bar charts with error bars.

In pubh: A Toolbox for Public Health and Epidemiology

Bar charts with error bars.

Description

bar_error constructs bar charts in with error bars showing 95 confidence intervals around mean values. High of bars represent mean values.

Usage

bar_error(
  object = NULL,
  formula = NULL,
  data = NULL,
  fill = "indianred3",
  col = "black",
  alpha = 0.7,
  ...
)

Arguments

object	When chaining, this holds an object produced in the earlier portions of the chain. Most users can safely ignore this argument. See details and examples.
formula	A formula with shape: y ~ x or y ~ x|z where y is a numerical variable and both x and z are factors.
data	A data frame where the variables in the formula can be found.
fill	Colour used to fill the bars.
col	Colour used for the borders of the bars.
alpha	Opacity of the colour fill (0 = invisible, 1 = opaque).
...	Additional information passed to gf_summary.

Examples

require(dplyr, quietly = TRUE)
require(sjlabelled, quietly = TRUE)
data(birthwt, package = "MASS")

birthwt <- birthwt |>
  mutate(
    smoke = factor(smoke, labels = c("Non-smoker", "Smoker")),
    Race = factor(race > 1, labels = c("White", "Non-white"))
  ) |>
  var_labels(
    bwt = "Birth weight (g)",
    smoke = "Smoking status"
  )

birthwt |>
  bar_error(bwt ~ smoke, fill = "plum3")

birthwt |>
  bar_error(bwt ~ smoke | Race, fill = "plum3")

birthwt |>
  bar_error(bwt ~ smoke, fill = ~Race)

pubh documentation built on Oct. 8, 2024, 9:08 a.m.