two_way_interaction_plot: Two-way Interaction Plot

In jasonmoy28/psycModel: Integrated Toolkit for Psychological Analysis and Modeling in R

Two-way Interaction Plot

Description

The function creates a three-way interaction plot. By default, it will create an interaction plot with -1 SD and +1 SD of the two continuous variables, or the two levels of the binary variables or dummy-coded multi-categorical variable It has been superseded by interaction_plot.

Usage

two_way_interaction_plot(
  model,
  interaction_term = NULL,
  response_var_name = NULL,
  predict_var1_name = NULL,
  predict_var2_name = NULL,
  predict_var1_level = NULL,
  predict_var2_level = NULL,
  predict_var1_level_name = NULL,
  predict_var2_level_name = NULL,
  y_lim = NULL,
  plot_color = FALSE,
  return_plot_data = FALSE,
  return_plot = FALSE,
  verbose = FALSE,
  print_plot = TRUE,
  data = NULL
)

Arguments

model	a regression model object from effect.
interaction_term	default is the first interaction term in the model. The term should be given explicitly if you want to plot other interaction terms.
response_var_name	The name of the response variable can be changed using this value.
predict_var1_name	The name of the first predictor can be changed using this value.
predict_var2_name	The name of the second predictor can be changed using this value.
predict_var1_level	default is the -1 SD and +1 SD for continuous variable. They can be changed using this value.
predict_var2_level	default is the -1 SD and +1 SD for continuous variable. They can be changed using this value.
predict_var1_level_name	The labels of the level can be change using this value (e.g., c('-1 SD','+1 SD')). The order should be from the left to right on the x-axis.
predict_var2_level_name	The labels of the level can be change using this value (e.g., c('-1 SD','+1 SD')). The order should be from the top to down on the legend.
y_lim	the plot's upper and lower limit for the y-axis. Length of 2. Example: c(lower_limit, upper_limit)
plot_color	default if FALSE. Set to TRUE if you want to plot in color
return_plot_data	default is FALSE. Set to TRUE to return the plot data.
return_plot	default is FALSE. Set to TRUE to return the plot.
verbose	deafult is TRUE.
print_plot	default is TRUE. Set to TRUE to print the plot.
data	Optional data.frame. Only used when it is not possible to extract data from the model object.

Details

It appears that “predict' cannot handle categorical factors. All variables are converted to numeric before plotting.

Value

an object of class ggplot

jasonmoy28/psycModel documentation built on Sept. 6, 2024, 11:45 a.m.