Add error bar — add_sem_bar • tidyplots

add_sem_bar() adds the standard error of mean.
add_range_bar() adds the range from smallest to largest value.
add_sd_bar() adds the standard deviation.
add_ci95_bar() adds the 95% confidence interval.

Usage

add_sem_bar(
  plot,
  dodge_width = NULL,
  width = 0.4,
  linewidth = 0.25,
  preserve = "total",
  ...
)

add_range_bar(
  plot,
  dodge_width = NULL,
  width = 0.4,
  linewidth = 0.25,
  preserve = "total",
  ...
)

add_sd_bar(
  plot,
  dodge_width = NULL,
  width = 0.4,
  linewidth = 0.25,
  preserve = "total",
  ...
)

add_ci95_bar(
  plot,
  dodge_width = NULL,
  width = 0.4,
  linewidth = 0.25,
  preserve = "total",
  ...
)

Arguments

plot: A tidyplot generated with the function tidyplot().
dodge_width: For adjusting the distance between grouped objects. Defaults to 0.8.
width: Width of the plot area. Defaults to 50.
linewidth: Thickness of the line in points (pt). Typical values range between 0.25 and 1.
preserve: Should dodging preserve the "total" width of all elements at a position, or the width of a "single" element?
...: Arguments passed on to the geom function.

Value

A tidyplot object

Examples

# Standard error of the mean
study %>%
  tidyplot(x = treatment, y = score, color = treatment) %>%
  add_data_points() %>%
  add_sem_bar()


# Range from minimum to maximum value
study %>%
  tidyplot(x = treatment, y = score, color = treatment) %>%
  add_data_points() %>%
  add_range_bar()


# Standard deviation
study %>%
  tidyplot(x = treatment, y = score, color = treatment) %>%
  add_data_points() %>%
  add_sd_bar()


# 95% confidence interval
study %>%
  tidyplot(x = treatment, y = score, color = treatment) %>%
  add_data_points() %>%
  add_ci95_bar()


# Changing arguments: error bar width
study %>%
  tidyplot(x = treatment, y = score, color = treatment) %>%
  add_data_points() %>%
  add_sem_bar(width = 0.8)


# Changing arguments: error bar line width
study %>%
  tidyplot(x = treatment, y = score, color = treatment) %>%
  add_data_points() %>%
  add_sem_bar(linewidth = 1)