conquestr (version 0.8.5)

plotItemMap: plotItemMap

Description

Creates a plot (ggplot2 object) of item parameter estimates and abilities on latent trait. Note this is not for use with `rout` files. See the method method plotRout.itemMap to the generic function `plotRout`

Usage

plotItemMap(mySys, myDims = "D1", ...)

Arguments

mySys

An 'ACER ConQuest' system file object created using the conquestr::ConQuestSys function.

myDims

A string specifying which specific dimensions should be included. The default is "D1", Specific dimensions are specified by the label "D1" for dimensions 1 etc. Alternatively, you can specify myDims = "all", though what this produces is not currenlty supported.

...

Optional arguments, mostly for debugging, e.g., `setDebug = TRUE` will print temporary data frames.

Value

A ggplot2 object.

Examples

# NOT RUN {
mySys1<- ConQuestSys()
myItemMap<- plotItemMap(mySys1, myDims = "all")
# }
# NOT RUN {
# if you run the above example you will have the plot in the object `myItemMap`.
plot(myItemMap)
# }