[R] access object inside a function

[Jonas]

Duncan, Patrick,

Sorry for not being very clear (and having non-working code in my
example). What I'm actually trying to achieve is creating a wrapper
around the NelsonSiegel function in the fBonds package in order to
(among other things) create my own plot function. However, all of the
objects i would like to access inside of my.function are not returned
by the NelsonSiegel function. The are only local inside the
NelsonSiegel function. Is there a way to inside my wrapper function
access these objects?

 my.function() <- {
    z <- NelsonSiegel(Yield, Maturity, doplot=FALSE)
    #here i would like to access objects not returned by NelsonSiegel
}


//Jonas

On Sun, Aug 3, 2008 at 6:05 PM, Patrick Burns <pburns at pburns.seanet.com> wrote:
> Duncan Murdoch wrote:
>>
>> On 03/08/2008 11:29 AM, Jonas wrote:
>>>
>>> hi,
>>>
>>> my apologies if this has been covered numerous times before and it's
>>> only my lack of search and/or R skills that is  stopping me from
>>> finding the solution.
>>> i'm trying to access an object defined and created inside a function
>>> (the object is not returned by the function), but i can't seem to get
>>> it to work, i keep getting an "object not found" error message. i
>>> thought the solution where to be found in changing the
>>> frame/environment. but i can't seem to understand how do do it
>>> correctly. what i want to do is something like:
>>>
>>> my.function() <- {
>>>   function.from.package(x,y)
>>>   plot (object.inside.package.function)
>>> }
>>
>> That pseudo-code doesn't really make sense: you didn't save the result of
>> function.from.package() anywhere.  If you change it to
>>
>>  my.function() <- {
>>    z <- function.from.package(x,y)
>>    plot (z)
>>  }
>>
>> then it's perfectly standard.  So the question is:  where are you
>> expecting R to look to find object.inside.package.function?
>
> I suspect the OP doesn't care where R looks as
> long as it finds it.  The fact that everything about
> 'function.from.package' except 'z' has been sucked
> down a black hole by the time 'plot' is on the scene
> is going to make that search impossible.
>
> One solution is to create 'my.function.from.package'
> and change the return value to include
> 'object.inside.package.function'.
>
> Patrick Burns
> patrick at burns-stat.com
> +44 (0)20 8525 0696
> http://www.burns-stat.com
> (home of S Poetry and "A Guide for the Unwilling S User")
>>
>> Duncan Murdoch
>>
>>>
>>> i'm using R 2.7.1 on linux
>>>
>>> sincerely,
>>> jonas
>>>
>>> ______________________________________________
>>> R-help at r-project.org mailing list
>>> https://stat.ethz.ch/mailman/listinfo/r-help
>>> PLEASE do read the posting guide
>>> http://www.R-project.org/posting-guide.html
>>> and provide commented, minimal, self-contained, reproducible code.
>>
>> ______________________________________________
>> R-help at r-project.org mailing list
>> https://stat.ethz.ch/mailman/listinfo/r-help
>> PLEASE do read the posting guide
>> http://www.R-project.org/posting-guide.html
>> and provide commented, minimal, self-contained, reproducible code.
>>
>>
>