Hi
Trying to do this

. kfoldclass cfvr age i.hypertens i.rygning puls_base bt_dia_base, model(logit) k(5)

But keep getting this message

Iterating across (5) hold-out samples
----+--- 1 ---+--- 2 ---+--- 3 ---+--- 4 ---+--- 5
.....options not allowed
r(101);

Any simple explanation?
Thx