[R] "no applicable method"

[Kyle Ellrott]

You actually got it right.
I didn't realize there was a difference between a data frame and  
matrix.  What is the difference any way?  Seems like all two  
dimensional arrays should be equivalent.

Kyle



> On Wed, 27 Jun 2007, Kyle Ellrott wrote:
>
>> I'm getting started in R, and I'm trying to use one of the gradient
>> boosting packages, mboost.  I'm already installed the package with
>> install.packages("mboost") and loaded it with library(mboost).
>> My problem is that when I attempt to call glmboost, I get a message
>> that " Error in glmboost() : no applicable method for "glmboost" ".
>> Does anybody have an idea of what kind of problem this is  
>> indicative of?
>
> The wrong class of input object 'x'.  The help page for glmboost is  
> written obscurely, but it seems to imply that it has methods for  
> 'formula' and 'matrix'.
>
> Perhaps you passed a data frame?
>
>> PLEASE do read the posting guide http://www.R-project.org/posting- 
>> guide.html
>> and provide commented, minimal, self-contained, reproducible code.
>
> is pertinent.  With an example and its output we would have been  
> much better placed to help you.
>
> -- 
> Brian D. Ripley,                  ripley at stats.ox.ac.uk
> Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
> University of Oxford,             Tel:  +44 1865 272861 (self)
> 1 South Parks Road,                     +44 1865 272866 (PA)
> Oxford OX1 3TG, UK                Fax:  +44 1865 272595