Add error bar

• add_sem_errorbar() adds the standard error of mean.

• add_range_errorbar() adds the range from smallest to largest value.

• add_sd_errorbar() adds the standard deviation.

• add_ci95_errorbar() adds the 95% confidence interval.

Usage

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

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

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

add_ci95_errorbar(
  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 for plots with at least one discrete axis and 0 for plots with two continuous axes.

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_errorbar()


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


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


# 95% confidence interval
study %>%
  tidyplot(x = treatment, y = score, color = treatment) %>%
  add_data_points() %>%
  add_ci95_errorbar()


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


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