Gavin,
I ran into the same cryptic "invalid subscript type 'closure'" message in
a slightly less complicated scenario, and wanted to post the cause in
my case (the root cause is probably the same either way).
Similarly to your case, I was subsetting a data frame. I had a list
of variable names
On Sun, 2009-08-09 at 11:32 -0500, Douglas Bates wrote:
> On Sat, Aug 8, 2009 at 1:31 PM, Gavin Simpson wrote:
> > Dear List,
>
> > I am writing a formula method for a function in a package I maintain. I
> > want the method to return a data.frame that potentially only contains
> > some of the vari
On Sat, Aug 8, 2009 at 1:31 PM, Gavin Simpson wrote:
> Dear List,
> I am writing a formula method for a function in a package I maintain. I
> want the method to return a data.frame that potentially only contains
> some of the variables in 'data', as specified by the formula.
The usual way to call
Dear List,
I am writing a formula method for a function in a package I maintain. I
want the method to return a data.frame that potentially only contains
some of the variables in 'data', as specified by the formula.
The problem I am having is in writing the function and wrapping it
around model.fr
