plot.np.dich {sirt}

Plot Method for Object of Class np.dich

Description

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

Usage

## S3 method for class '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.