R help - Sep 2004 - call R scripts from python

Hello,
I have just learnt some python, and would like to call R scripts from python,
without using batch mode.
I learnt how to do it from perl, in fact reading in the mail archive I found the
following good example:

***************************************
#!/usr/local/bin/perl 
open (FILE, ">test.txt"); 
print FILE "a,b,c,d,e\n1,2,3,4,5"; 
close FILE; 

####### Start R code #### 
open (R_FH, "|/usr/local/bin/R --no-save --slave") or die
"$!";

print R_FH qq{ 
data<-read.csv("test.txt") 
datamean<-mean(as.numeric(as.character(data[1,])), na.rm=TRUE) 
write(datamean, file="out.txt") 
quit(save='no',status=0) 
}; 

close R_FH; 
##### end R #### 

open(FILE, "<out.txt"); 
while (<FILE>){ 
$mean= $_; 
} 
close FILE; 
***************************************

this thankfully to the power of function open in perl.

I know this can be a bit OT, but is there a function in python accomplishing the
same task?

Thanks to everyone.

G F


				
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Fulvio Copex wrote:
> I know this can be a bit OT, but is there a function in python
accomplishing the same task?
os.popen - opens a pipe to a command:

[unixy example]

#!/usr/bin/python
import os
catter=os.popen("cat","w")
catter.write( "hello" )


  http://docs.python.org/ is very useful.

  There are other R-Python integration methods, try this:

http://www.omegahat.org/RSPython/index.html

Barry