[R] How to load functions in R
a.ramasamy at imperial.ac.uk
Fri Sep 12 05:02:56 CEST 2008
source() should read all the function in that file unless there was a
syntax error or something else preventing the other function from being
parsed correctly. Could you send us a simplified example that reproduces
Mihai.Mirauta at bafin.de wrote:
> 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
>> 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
>>> On Thu, Sep 11, 2008 at 9:30 PM, <Mihai.Mirauta at bafin.de> wrote:
>>>> 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
>>>> 1. Load the text file with the functions in the current script:
>>>> 2. transform the tex in a function: f1=eval(x), f2=eval(x) 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>
> Phone: +86-(0)10-82509086 Fax: +86-(0)10-82509086
> Mobile: +86-15810805877
> Homepage: http://www.yihui.name
> School of Statistics, Room 1037, Mingde Main Building, Renmin University of China, Beijing, 100872, China
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