summary.pmatrix.class {mokken} | R Documentation |
S3 Method for summary
of objects of class pmatrix.class.
Summarize checks of nonintersection using method pmatrix.
## S3 method for class 'pmatrix.class': summary(object, ...)
object |
list produced by check.pmatrix |
... |
Optional parameters will be ignored |
ppp.summary.matrix |
Matrix with ncol(X) rows and 7 columns,
showing for each item a summary of the violations in the P(++) matrix. |
pmm.summary.matrix |
ppp.summary.matrix |
{Matrix with ncol(X)
rows and 7 columns,
showing for each item a summary of the violations in the P(–) matrix.}
L. A. van der Ark a.vdark@uvt.nl
Mokken, R. J. (1971) A Theory and Procedure of Scale Analysis. Berlin, Germany: De Gruyter.
Molenaar, I.W. and Sijtsma, K. (2000) User's Manual MSP5 for Windows [Software manual]. Groningen, The Netherlands: IEC ProGAMMA.
Sijtsma, K, and Molenaar, I. W. (2002) Introduction to nonparametric item response theory. Thousand Oaks, CA: Sage.
Van der Ark, L. A. (2007). Mokken scale analysis in R. Journal of Statistical Software. http://www.jstatsoft.org
check.pmatrix
, plot.pmatrix.class
data(acl) Communality <- acl[,1:10] pmatrix.list <- check.pmatrix(Communality) plot(pmatrix.list) summary(pmatrix.list)