The format is: List of 2 $ Y: num [1:100, 1:100] NA -4.05 -0.181
-3.053 -1.579 ... $ X: num [1:100, 1:100, 1:8] 1 1 1 1 1 1 1 1 1 1 ... ..-
attr(*, "dimnames")=List of 3 .. ..$ : NULL .. ..$ : NULL .. ..$ : chr [1:8]
"intercept" "rgpa" "rsmoke" "cgpa" ...