Example Data: Nested Hierarchical Categories

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Description

Simulated example data set for a model with nested hierarchical latent variables.

Format

An IRT response matrix with 300 persons and 30 binary items.

References

De Boeck, P. and Partchev, I. (2012). IRTrees: Tree-Based Item Response Models of the GLMM Family, Journal of Statistical Software – Code Snippets, 48(1), 1–28. http://www.jstatsoft.org/v48/c01/.

Examples

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str(neslat)
str(neslatT <-
    exogenize(neslat, cbind(c(1,1,1), c(1,0,0), c(0,1,0), c(0,0,1)), 
	endnode=rep(1:3, each = 10)))