Updated lasso/ridge.
Updated lasso/ridge.


Former-commit-id: 599ec5731abdc769ebbea0d6238bfeb127c04745 [formerly 99f9f56540245e9b09fd0693a17f074d4071cf34]
Former-commit-id: e9361bc77f52f18273c9b8e340b6a983c487fbae
justinbois/bebi103_utils