Plot Method for Object of Class np.dich — plot.np.dich • sirt

This function plots nonparametric item response functions estimated with dich.np.

Usage

# S3 method for np.dich
plot(x, b, infit=NULL, outfit=NULL,
    nsize=100, askplot=TRUE, progress=TRUE, bands=FALSE,
    plot.b=FALSE, shade=FALSE, shadecol="burlywood1", ...)

Arguments

x: Object of class np.dich
b: Estimated item difficulty (threshold)
infit: Infit (optional)
outfit: Outfit (optional)
nsize: XXX
askplot: Ask for new plot?
progress: Display progress?
bands: Draw confidence bands?
plot.b: Plot difficulty parameter?
shade: Shade curves?
shadecol: Shade color
...: Further arguments to be passed

See also

For examples see np.dich.