Display Multiple Plots Simultaneously from ggExametrika Output

This function arranges multiple ggplot objects from ggExametrika functions into a single display using a grid layout. Useful for comparing plots across items or students.

Usage

combinePlots_gg(plots, selectPlots = c(1:6))

Arguments

plots: A list of ggplot objects, typically output from functions like plotICC_gg, plotIRP_gg, etc.
selectPlots: A numeric vector specifying which plots to display. Default is 1:6 (first 6 plots). Indices exceeding the list length are automatically excluded.

Value

A gtable object containing the arranged plots, displayed as a side effect.

Details

This function uses gridExtra::grid.arrange to combine multiple plots. The number of rows and columns is automatically determined. For more control over layout, consider using gridExtra::grid.arrange directly with the nrow and ncol arguments.

Examples

library(exametrika)
#> 
#> Attaching package: ‘exametrika’
#> The following objects are masked from ‘package:ggExametrika’:
#> 
#>     ItemInformationFunc, LogisticModel
result <- IRT(J15S500, model = 3)
plots <- plotICC_gg(result)
combinePlots_gg(plots, selectPlots = 1:6) # Show first 6 items

combinePlots_gg(plots, selectPlots = c(1, 5, 10)) # Show specific items