[R] Suppressing the Intercept in lm() when using a dataframe for the model

[David Winsemius]

On Oct 16, 2011, at 3:55 PM, Cliff Clive wrote:

> It's easy to run a linear regression on a simple model without an  
> intercept
> just by doing this:
>
> lm(y ~ x1 + x2 -1)
>
>
> Is there a similar trick to suppress the intercept when your model  
> is in a
> large dataframe and you don't want to write out the names of  
> individual
> columns?

Something along the lines of:
lm(y ~ . -1, data=dfrm)

But you do need to offer specific examples to get specific answers.  
(Hence the usual advice to read the Posting Guide.)
>


-- 

David Winsemius, MD
Heritage Laboratories
West Hartford, CT