最近在学习用glmnet,在用glmnet实现cox惩罚回归时,对照例子改了代码,但是老提示错误,错误内容是:
提交这句后
> cv.fit <- cv.glmnet(x,y, family = "cox", maxit = 1000)
会提示错误:
错误: Cox model requires a matrix with columns 'time' (>0) and 'status' (binary) as a response; a 'Surv' object suffices
但是我明明已经定义了y为y=Surv(t,SS),哪位大侠能帮帮忙!