Calculate weights for each block by extracting the first principal component of the indicator correlation matrix S_jj for each blocks, i.e., weights are the simply the first eigenvector of S_jj.

 .S                 = args_default()$.S,
 .csem_model        = args_default()$.csem_model



The (K x K) empirical indicator correlation matrix.


A (possibly incomplete) cSEMModel-list.


A named list. J stands for the number of constructs and K for the number of indicators.


A (J x K) matrix of estimated weights.




The mode used. Always "PCA".


NULL as there are no iterations


0 as there are no iterations