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
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.
ginLabs
A string specifying whether short or long gin labels should
be used. Default to "short".
abilityType
What kind of person ability estimate should be used?
Defaults to plausible values. Alternatively WLE, MLE, EAP.
...
Optional arguments, mostly for debugging, e.g., setDebug = TRUE
will print temporary data frames.
mySys1 <- ConQuestSys()
myItemMap <- plotItemMap(mySys1)
if (FALSE) {
# if you run the above example you will have the plot in the object `myItemMap`.plot(myItemMap)
}