Dimensionality {exametrika} | R Documentation |
Dimensionality
Description
The dimensionality is the number of components the test is measuring.
Usage
Dimensionality(U, na = NULL, Z = NULL, w = NULL)
Arguments
U |
U is a data matrix of the type matrix or data.frame. |
na |
na argument specifies the numbers or characters to be treated as missing values. |
Z |
Z is a missing indicator matrix of the type matrix or data.frame |
w |
w is item weight vector |
Value
Returns a list of class c("exametrika", "Dimensionality") containing:
Component: Sequence of component numbers
Eigenvalue: Eigenvalues of the tetrachoric correlation matrix
PerOfVar: Percentage of variance explained by each component
CumOfPer: Cumulative percentage of variance explained
[Package exametrika version 1.1.0 Index]