Forum: eRm 0.9-6

Posted by: Stefan Theussl
Date: 2008-01-14 16:00
Summary: eRm 0.9-6
Project: Management Science @ WU

Development Status : 1 - Planning
Environment : Console (Text Based) : Win32 (MS Windows)
Intended Audience : Developers : Other Audience
License : GNU General Public License (GPL)
Natural Language : English : German
Operating System : Windows : Linux
Topic : Other/Nonlisted Topic

Content:

- new options in plotGOF():
conf: draws confidence ellipses for item parameters,
optionally single items can be chosen interactively
ctrline: draws confidence bands along the unit line based on the
se's of the item parameters (cf. Wright & Stone, 1999)

- new or enhanced options in plotGOF():
empirical: empirical ICCs can now be smoothed using various
smoothers (such as Tukey, loess, or kernel)
ask: interactive turning over of plots can be switched off
(only useful if automated figure export is in effect, e.g.,
when using Sweave)

- new method: plotPImap()
plots Person-Item maps (cf. Bond & Fox, 2005), i.e., a map of
locations of item (and threshold) parameters, and the
distribution of person parameters

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