kim (version 0.6.1)

mixed_anova_2_way: Mixed ANOVA 2-Way (Two-Way Mixed ANOVA)

Description

Conduct a two-way mixed analysis of variance (ANOVA).

Usage

mixed_anova_2_way(
  data = NULL,
  iv_name_bw_group = NULL,
  repeated_measures_col_names = NULL,
  iv_name_bw_group_values = NULL,
  colors = NULL,
  error_bar = "ci",
  position_dodge = 0.13,
  legend_title = NULL,
  x_axis_expansion_add = c(0.2, 0.03),
  x_axis_title = NULL,
  y_axis_title = "Mean",
  output = "all"
)

Arguments

data

a data object (a data frame or a data.table)

iv_name_bw_group

name of the between-group independent variable

repeated_measures_col_names

names of the columns containing the repeated measures

iv_name_bw_group_values

restrict all analyses to observations having these values for the between-group independent variable

colors

colors of the dots and lines connecting means (default = NULL) If there are exactly two repeated measures, then, by default, colors = c("red", "blue")

error_bar

if error_bar = "ci" error bars will be a 95% confidence interval; if error_bar = "se", error bars will be +/-1 standard error. By default, error_bar = "ci"

position_dodge

by how much should the group means and error bars be horizontally offset from each other so as not to overlap? (default = 0.13)

legend_title

a character for the legend title. If no input is entered, then, by default, the legend title will be removed.

x_axis_expansion_add

inputs for the add parameter of the expand argument. The first and second values respectively determine the amount of space to add to the left and right along the x-axis. By default, x_axis_expansion_add = c(0.2, 0.03) which means that space with the width of 0.2 will be added to the left, and space with the width of 0.03 will be added to the right.

x_axis_title

a character string for the x-axis title. If x_axis_title == FALSE, which is the default value, the x-axis title will be removed.

y_axis_title

a character string for the y-axis title (default = "Mean"). If x_axis_title == FALSE, the y-axis title will be removed.

output

output type can be one of the following: "plot", "all"

Details

The following package(s) must be installed prior to running this function: Package 'afex' v3.0.9 (or possibly a higher version) by Fox et al. (2020), https://cran.r-project.org/package=car

Examples

# \donttest{
mixed_anova_2_way(
  data = iris, iv_name_bw_group = "Species",
  repeated_measures_col_names = c("Sepal.Length", "Petal.Length"))
g1 <- mixed_anova_2_way(
  data = iris, iv_name_bw_group = "Species",
  repeated_measures_col_names = c("Sepal.Length", "Petal.Length"),
  error_bar = "se",
  output = "plot")
# }