extract: extracts IRT item parameters
In lordif: Logistic Ordinal Regression Differential Item Functioning using IRT
extract R Documentation
extracts IRT item parameters
Description
Extracts IRT item parameter estimates from an output returned from mirt::mirt()
Usage
extract(ipar)
Arguments
ipar
output from the mirt::mirt() function of the mirt package
Details
similar to the coef function in the mirt package
Value
a data frame containing item parameter estimates in the order of
a, cb1, cb2,..., cb(maxCat-1).
Author(s)
Seung W. Choi <choi.phd@gmail.com>
See Also
lordif, mirt::mirt()
Examples
##calib.sparse <- mirt(sparse.matrix,1,itemtype="gpcm")
## Not run: ipar.sparse <- extract(calib.sparse)
lordif documentation built on April 3, 2025, 10:37 p.m.
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| extract | R Documentation |
extracts IRT item parameters
Description
Extracts IRT item parameter estimates from an output returned from mirt::mirt()
Usage
extract(ipar)
Arguments
ipar |
output from the |
Details
similar to the coef function in the mirt package
Value
a data frame containing item parameter estimates in the order of a, cb1, cb2,..., cb(maxCat-1).
Author(s)
Seung W. Choi <choi.phd@gmail.com>
See Also
lordif, mirt::mirt()
Examples
##calib.sparse <- mirt(sparse.matrix,1,itemtype="gpcm")
## Not run: ipar.sparse <- extract(calib.sparse)
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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