The following describes commonly used arguments in the matrixpls package.
S 
Covariance matrix of the data. 
model 
There are two options for this argument: 1. lavaan script or lavaan parameter
table, or 2. a list containing three matrices

W 
Weight matrix, where the indicators are on colums and composites are on the rows. 
C 
Correlation matrix of the composites. 
IC 
Correlation matrix of the composites and indicators. 
E 
Inner weight matrix. A square matrix of inner estimates between the composites. 
W.model 
A matrix specifying the weight relationships and their starting values. 
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