[R] How to load functions in R

[Adaikalavan Ramasamy]

Strange.

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 
this problem?

Thanks.

Regards, Adai



Mihai.Mirauta at bafin.de wrote:
>  
> Hello,
> 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,
>
> Mihai
> -----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 :-)
>
> Regards,
> Yihui
>
> 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]]
>>>>
>>>>         
>>     
>
>
>
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> Yihui Xie <xieyihui at gmail.com>
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