* read in the correlation matrix data first (get file ...). FACTOR matrix in(cor=*) /MISSING LISTWISE /ANALYSIS v1 v2 v3 v4 v5 v6 v7 v8 v9 v10 v11 v12 v13 v14 v15 v16 v17 v18 v19 v20 v21 v22 v23 v24 /PRINT INITIAL CORRELATION EXTRACTION /CRITERIA MINEIGEN(1) ITERATE(25) /EXTRACTION PC /ROTATION NOROTATE .