structure.list {psych} | R Documentation |
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.
structure.list(nvars, f.list,f=NULL, f.labels = NULL, item.labels = NULL) phi.list(nf,f.list, f.labels = NULL)
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 |
This is almost self explanatory. See the examples.
factor.matrix |
a matrix of factor loadings to model |
structure.graph
for drawing it, or sim.structure
for creating this data structure.
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