R help - Jan 2009 - easiest way to integrate own functions on startup

Hi,

I am currently writing some own functions that I frequently need.

So, it would be perfect if I could load these functions at the  
beginning of each R-session with a small command.


I tried to generate a R-package and install it that way.

But it seems that it is not so easy to add new functions to an  
existing R-package.
So I am not so flexible by that.


Is there a way to just load an .R-file which contains the function- 
definitions with a small command?
So that the functions are useable in the current session?


I tried load() but I get an error message...

On 19/01/2009 7:13 PM, J?rg Gro? wrote:
> Hi,
> 
> I am currently writing some own functions that I frequently need.
> 
> So, it would be perfect if I could load these functions at the  
> beginning of each R-session with a small command.
> 
> 
> I tried to generate a R-package and install it that way.
> 
> But it seems that it is not so easy to add new functions to an  
> existing R-package.
> So I am not so flexible by that.
> 
> 
> Is there a way to just load an .R-file which contains the function- 
> definitions with a small command?
> So that the functions are useable in the current session?
> 
> 
> I tried load() but I get an error message...
load() loads a binary image that was saved by save().  You probably want 
source(), which reads and executes a file of R source.

Duncan Murdoch

On Tue, 2009-01-20 at 01:13 +0100, J?rg Gro? wrote:
> Hi,
> 
> I am currently writing some own functions that I frequently need.
> 
> So, it would be perfect if I could load these functions at the  
> beginning of each R-session with a small command.
> 
> 
> I tried to generate a R-package and install it that way.
> 
> But it seems that it is not so easy to add new functions to an  
> existing R-package.
> So I am not so flexible by that.
> 
> 
> Is there a way to just load an .R-file which contains the function- 
> definitions with a small command?
> So that the functions are useable in the current session?
> 
> 
> I tried load() but I get an error message...

Hi J?rg,

I do you not use .Fisrt.

Something like this:

.First <- function(){
	source(MyFunction1.txt)
	source(MyFunction2.txt)
	source(MyFunction3.txt)
...
	source(MyFunctionn.txt)
}

-- 
Bernardo Rangel Tura, M.D,MPH,Ph.D
National Institute of Cardiology
Brazil