vcov-method: Extract parameter variance covariance matrix
In philchalmers/mirt: Multidimensional Item Response Theory
vcov-method R Documentation
Extract parameter variance covariance matrix
Description
Extract parameter variance covariance matrix
Usage
## S4 method for signature 'SingleGroupClass'
vcov(object)
Arguments
object
an object of class SingleGroupClass,
MultipleGroupClass, or MixedClass
References
Chalmers, R., P. (2012). mirt: A Multidimensional Item Response Theory
Package for the R Environment. Journal of Statistical Software, 48(6), 1-29.
\Sexpr[results=rd]{tools:::Rd_expr_doi("10.18637/jss.v048.i06")}
Examples
x <- mirt(Science, 1, SE=TRUE)
vcov(x)
philchalmers/mirt documentation built on July 4, 2025, 1:24 p.m.
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| vcov-method | R Documentation |
Extract parameter variance covariance matrix
Description
Extract parameter variance covariance matrix
Usage
## S4 method for signature 'SingleGroupClass'
vcov(object)
Arguments
object |
an object of class |
References
Chalmers, R., P. (2012). mirt: A Multidimensional Item Response Theory Package for the R Environment. Journal of Statistical Software, 48(6), 1-29. \Sexpr[results=rd]{tools:::Rd_expr_doi("10.18637/jss.v048.i06")}
Examples
x <- mirt(Science, 1, SE=TRUE)
vcov(x)
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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