mudfold: Multiple UniDimensional unFOLDing

Nonparametric item response theory (IRT) model for nonmonotonic IRFs, which is fruitful for scale analysis of proximity items.

Version: 1.1.0
Depends: R (≥ 3.3.3), yesno, gtools, zoo, ggplot2, reshape2, stats, utils
Published: 2017-12-18
Author: Spyros Balafas [aut, cre], Wim Krijnen [aut], Wendy Post [ctr], Ernst Wit [aut]
Maintainer: Spyros Balafas <s.balafas at>
License: GPL-2 | GPL-3 [expanded from: GPL (≥ 2)]
NeedsCompilation: no
CRAN checks: mudfold results


Reference manual: mudfold.pdf
Package source: mudfold_1.1.0.tar.gz
Windows binaries: r-devel:, r-release:, r-oldrel:
OS X El Capitan binaries: r-release: mudfold_1.1.0.tgz
OS X Mavericks binaries: r-oldrel: not available
Old sources: mudfold archive


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