summary.mdf {mudfold} | R Documentation |
summary
method for S3 class "mdf"
objects.
Description
Generic function that is used in order to summarize information from "mdf"
class objects.
Usage
## S3 method for class 'mdf'
summary(object, boot=FALSE, type="perc", ...)
Arguments
object |
: Object of class |
boot |
: This argument applies when the |
type |
: A string that determines the type of confidence intervals that will be calculated. This argument is passed to the |
... |
Other arguments passed on to the function |
Details
A summary of the MUDFOLD scale that has been calculated with the mudfold
function.
Value
The output of the summary.mdf()
is a list with two main components. The first component of the list is a data.frame
with scale statistics and the second component is a list with item statistics. If diagnostics=TRUE
another component with diagnostic matrices is also included in the output. When the bootstrap scale estimate does not agree with the obtained MUDFOLD estimate a summary of the bootstrap scale will be given in the output.
Author(s)
Spyros E. Balafas (auth.), Wim P. Krijnen (auth.), Wendy J. Post (contr.), Ernst C. Wit (auth.)
Maintainer: Spyros E. Balafas (s.balafas@rug.nl)
References
W.H. Van Schuur.(1984). Structure in Political Beliefs: A New Model for Stochastic Unfolding with Application to European Party Activists. CT Press.
W.J. Post. (1992). Nonparametric Unfolding Models: A Latent Structure Approach. M & T series. DSWO Press.
W.J. Post. and T.AB. Snijders (1993). Nonparametric unfolding models for dichotomous data. Methodika.
Examples
## Not run:
data(ANDRICH)
fit <- mudfold(ANDRICH, nboot=100)
summary(fit, boot=TRUE)
summary(fit, boot=FALSE)
## End(Not run)