[R] How to load functions in R

Mihai.Mirauta at bafin.de Mihai.Mirauta at bafin.de
Thu Sep 11 16:53:05 CEST 2008

It seems that all methods work. 
Source() however loads only the last function. with save(a,b,file="path") i can save more than 1 function. 
Thanks a lot,

-----Ursprüngliche Nachricht-----
Von: Yihui Xie [mailto:xieyihui at gmail.com] 
Gesendet: Donnerstag, 11. September 2008 16:48
An: a.ramasamy at imperial.ac.uk
Cc: Mirauta, Mihai; r-help at r-project.org
Betreff: Re: [R] How to load functions in R

We may just read them in the R console instead of an external editor, and "fix()" or "edit()" them when we need to make any modifications. A trivial advantage of saving them as an image file in Windows is that you can double-click the file and R will be started with these objects loaded automatically. Anyway, to save the functions as ASCII files or even write a package are also good solutions :-)


On Thu, Sep 11, 2008 at 10:34 PM, Adaikalavan Ramasamy <a.ramasamy at imperial.ac.uk> wrote:
> I would recommend saving the functions into a separate file and then 
> using
> source() as bartjoosen suggested.
> I do not recommend using save() here because the output is 
> non-readable (even when using ascii=TRUE option). Which means that you 
> have to load() it, then copy-and-paste into an editor before making 
> changes and then running it again in R and then save() again.
> Another better option is to consider making your own package. It may 
> sound complicated but once you mastered it, it makes your functions 
> more portable and encourages you to document it. Further, the function 
> package.skeleton() simplifies much of it.
> Regards, Adai
> Yihui Xie wrote:
>> Hi, you may save your functions somewhere on your disk using "save()"
>> and load them next time when you want to use them. See ?save and 
>> ?load
>> Yihui
>> On Thu, Sep 11, 2008 at 9:30 PM,  <Mihai.Mirauta at bafin.de> wrote:
>>> Hello,
>>> I am trying to use self created functions in other scripts than the 
>>> one where they are stored.
>>> For the moment I am using the following structure of commands to do
>>> that:
>>> 1. Load the text file with the functions in the current script:
>>> x=parse("path")
>>> 2. transform the tex in a function: f1=eval(x[1]), f2=eval(x[2]) if 
>>> more than one function is stored in the text file 3. use the 
>>> functions as normal
>>> Is there another possibility to do the same?
>>> Thank you,
>>> Mihai Mirauta
>>>       [[alternative HTML version deleted]]

Yihui Xie <xieyihui at gmail.com>
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Homepage: http://www.yihui.name
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