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psych (version 1.9.12.31)

structure.list: Create factor model matrices from an input list

Description

When creating a structural diagram or a structural model, it is convenient to not have to specify all of the zero loadings in a structural matrix. structure.list converts list input into a design matrix. phi.list does the same for a correlation matrix. Factors with NULL values are filled with 0s.

Usage

structure.list(nvars, f.list,f=NULL, f.labels = NULL, item.labels = NULL)
phi.list(nf,f.list, f.labels = NULL)

Arguments

nvars

Number of variables in the design matrix

f.list

A list of items included in each factor (for structure.list, or the factors that correlate with the specified factor for phi.list

f

prefix for parameters -- needed in case of creating an X set and a Y set

f.labels

Names for the factors

item.labels

Item labels

nf

Number of factors in the phi matrix

Value

factor.matrix

a matrix of factor loadings to model

Details

This is almost self explanatory. See the examples.

See Also

structure.graph for drawing it, or sim.structure for creating this data structure.

Examples

Run this code
# NOT RUN {
fx <- structure.list(9,list(F1=c(1,2,3),F2=c(4,5,6),F3=c(7,8,9)))
fy <- structure.list(3,list(Y=c(1,2,3)),"Y")
phi <- phi.list(4,list(F1=c(4),F2=c(1,4),F3=c(2),F4=c(1,2,3)))
fx
phi
fy


# }

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