Displaying 3 results from an estimated 3 matches for "fwdmsa".
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2012 Mar 21
1
small scales in fwdmsa
I'm using the fwdmsa package to identify deviant cases in a Mokken scale
analysis. I've run into a problem. When I use scales comprising a few items,
iI tend to get an error:
Error in y[order(res[-msamp])][1:(length(samp) + 1 - length(msamp))] :
only 0's may be mixed with negative subscripts
I understand t...
2012 Mar 21
1
fwdmsa package: Error in search.normal(X[samp, ], verbose = FALSE) : At least one item has no variance
I'm using the fwdmsa package to identify deviant cases in a Mokken scale
analysis. I've run into a problem., separate from the one I posted
previously. The problem comes with items that are "easy" by IRT standards. A
good scale should include a range of difficulties; yet when I include "easy"
it...
2010 Jul 18
6
CRAN (and crantastic) updates this week
...pricing by duplication methods for popular structured
products ("Zertifikate")
* fdth (1.1-2)
Jose Claudio Faria
http://crantastic.org/packages/fdth
Perform frequency distribution tables, associated histograms and
poligons from vector, data.frame and matrix objects.
* fwdmsa (0.1)
Wobbe P. Zijlstra
http://crantastic.org/packages/fwdmsa
fwdmsa performs the Forward Search for Mokken scale analysis. It
detects outliers, it produces several types of diagnostic plots.
* gamlss.demo (4.0-3)
Mikis Stasinopoulos
http://crantastic.org/packages/gamlss-demo
Demos...