Hi, I have tried to run a regression based on a covariance matrix (saved as Libro1.csv) but I've got the follwing message:

"The READ subcommand is no longer used. Use MATRIX IN(reference) instead. Matrix input now expects an SPSS data file. Text found: READ.
This command is not executed."

I used the following syntax:

DATA LIST Free MATRIX FILE='/Users/Desktop/Libro1.csv'
/wsum satsum cl1 cl2 cl3 cl4.
N OF CASES 452.
REGRESSION READ COV
/VARIABLES=wsum satsum cl1 cl2 cl3 cl4
/ORIGIN
/DEPENDANT=wsum
/METHOD=ENTER satsum cl1 cl2 cl3 cl4.

I would appreciate a lot if anyone could give me an advice concerning this issue. Thank you.