[Rd] lm() takes weights from formula environment

[Duncan Murdoch]

On 09/08/2020 3:07 p.m., Duncan Murdoch wrote:
> On 09/08/2020 3:01 p.m., John Mount wrote:
>> Doesn't this preclude "y ~ ." style notations?
> 
> Yes, but you can use "y ~ . - w".

And as was pointed out to me offline, often one doesn't have a simple 
vector w giving the weights, instead one computes the weights from the 
predictors.  So if weights = f(pred), the original "y ~ ." would be fine.

Duncan Murdoch