TestDesign (version 1.7.0)

plotShadowInfo: (Internal) Plot test information of a single shadow test

Description

plotShadowInfo is an internal function for plotting the test information curve of a single shadow test.

Usage

plotShadowInfo(
  x,
  examinee_id,
  position,
  info_type,
  ylim = NULL,
  theta,
  color,
  use_par,
  ...
)

Arguments

x

an output_Shadow_all object.

examinee_id

the numeric index of an examinee.

position

the position within the test administration (i.e., test progress), ranging from 1 to test length.

info_type

the information type. Currently only accepts FISHER.

ylim

(optional) the y-axis range. Defaults to 0 to maximum information.

theta

theta quadrature points to compute information values at.

color

the color for test information curve.

use_par

not used.

...

not used.