plotShadowInfo function

(Internal) Plot test information of a single shadow test

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

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.