How to use division in lm

lm, r

Solution

`lm(y~I(a/b))`

This is covered in `?formula`.

Problem

I would like to use `lm` to predict `y` by `a/b` (the quotient of a by b) when I do `lm(y~a/b)` I get `a` and `b` interactions, how can I do ?

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