Question: I'm trying to do the linear regression for a data set. My command is > phonelinearmodel=train(Churn ~ ., data = Trainphone, metric = ROC ,method

I'm trying to do the linear regression for a data set.

My command is

> phonelinearmodel=train(Churn ~ ., data = Trainphone, metric = "ROC",method = "glmnet", trControl = 'control', preProcess = c("center","scale"))

I've below error

Error: $ operator is invalid for atomic vectors

Can you help me why this error appears?

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