[R] how to fit a glm model with all possible interactions between explanatory variables

[David Winsemius]

On Jun 6, 2013, at 12:52 PM, Jack Luo wrote:

> Hi,
> 
> I am trying to find a way to fit a glm model with all the possible
> interaction terms between different variables, without typing all the
> X1:X2, X1:X3,  in the formula, is there a way in R to do that?

The "*" operator does that:

  ~ X1 * X2 * X3

-- 
David Winsemius
Alameda, CA, USA