summary.D3mirt {D3mirt}

Summary Method for S3 Objects of Class D3mirt

Description

The summary method for the D3mirt() function.

Usage

## S3 method for class 'D3mirt'
summary(object, ..., digits = 4)

Arguments

object

A S3 object of class D3mirt.

...

Additional arguments.

digits

The number of digits shown per estimate. The default is digits = 4.

Value

Tables containing a and d parameters, multidimensional discrimination (MDISC), multidimensional item difficulty (MDIFF), direction cosines, and degrees for vector angles for items. If constructs were used in the estimation process, the summary function will also show tables for direction cosines, and degrees for construct vectors as well as directional discrimination (DDISC) parameters.

Author(s)

Erik Forsberg

Examples

## Not run: 
# Call D3mirt() and create list of constructs
# The first argument can be data frame with model parameters
# or an S4 object of class 'SingleGroupClass' exported from mirt::mirt
c <- list(list(1,2,3,4,5,6,7,8,9,10),
          list(11,12,13,14),
          list(15,17,18,19,20))
g <- D3mirt(mod1, c)

# Call to summary
summary(g)

#' # Call to summary rounded off to 2 digits
summary(g, digits = 2)

## End(Not run)