Hi,
There are two ways to do what you want to do:
1. Explicitly use save() in R. Something like: o.write("save(obj1, obj2,
file=\"filename\")") to save a select set of R objects to a file you specify
(can be retrieved with load later), or
2. When you quit R: o.write("quit(\"yes\")\n") instead of
o.write("quit(\"no\")\n") to save everything to the .Rdata
HTH,
Nick
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of
[EMAIL PROTECTED]
Sent: Wednesday, April 21, 2004 12:08 PM
To: [EMAIL PROTECTED]
Subject: [R] calling R from java
Hello,
I need to call R from a java(swing) application. I manage to do it with
something like :
Process p = Runtime.getRuntime().exec("R --slave")
OutputStreanWriter o = new OutputStreamWriter(p.getOutputStream())
o.wrote("...")
... etc
but at the end no .Rdata file has been created and there are some data I
don't want to reload each time (for time execution reasons).
So,
Is it possible when calling R from java to create a .Rdata file to save
data and as a consequence when recalling in the same directory not to have
to reload those data ?
(Maybe the option --slave need to be changed ? )
many thanks for helping me
best regards,
af
[EMAIL PROTECTED]
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