[R] passing graph image data from remote Rserve
Hello, I am using Rserve to create a dedicated computational back-engine. I generate and pass an array of data to a java application on a separate server. I was wondering if the same is possible for an image. I believe that Rserve supports passing certain R objects and JRclient can cast these objects into their Java counterparts. If I generate a barplot in R (remotely), can I pass the graph image back to the Java application for display? Currently, I am reduced to saving the graph as a .pdf locally, passing the .pdf's filepath to the Java application and allowing the application access to the file, which is not an ideal structure. Thanks for your help, Prasad [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] passing graph image data from remote Rserve
I believe I have found my solution, so please disregard. Thanks [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] 'system' command through Rserve
Hi Jeff,
You are absolutely right. In all the mess, I forgot that my Rserve was
started by a different user! Sometimes it's the simplest solution, isn't
it? Thanks a lot.
-Prasad
-Original Message-
From: Jeffrey Horner [mailto:[EMAIL PROTECTED]
Sent: Thursday, July 31, 2008 5:14 PM
To: Patil, Prasad
Cc: r-help@r-project.org
Subject: Re: [R] 'system' command through Rserve
This probably has to do with your ssh configuration and nothing to do
with R. How are you starting Rserve? Is it run with the same user
privileges as when you run R manually?
Best,
Jeff
Patil, Prasad wrote on 07/31/2008 02:51 PM:
Hello,
I've installed an Rserve instance on a remote server. I have no
problem
interfacing with it and running most commands. I have loaded some R
scripts on the remote server, and one of them contains a system
command
to copy a file (created by the script) onto another server. When I run
the script on the remote server itself, the script works as I intend:
it
creates a .csv file and uses scp to copy it onto another server. When
I
run the script remotely (through an Rconnection in Java), the .csv is
created but the file is not copied onto the other server. Is there any
reason why a system command would work when called locally but not
when
called remotely?
The format is as follows:
# create array
write.csv(array, array.csv)
system(scp /{path}/array.csv {remote server}:/{path2})
Again, the script works correctly when run through R on the remote
server, but when I run it through Rserve, everything works except for
the 'system' command. Any insights would be greatly appreciated.
Thanks a lot,
Prasad
[[alternative HTML version deleted]]
__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
--
http://biostat.mc.vanderbilt.edu/JeffreyHorner
__
R-help@r-project.org mailing list
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
[R] 'system' command through Rserve
Hello,
I've installed an Rserve instance on a remote server. I have no problem
interfacing with it and running most commands. I have loaded some R
scripts on the remote server, and one of them contains a system command
to copy a file (created by the script) onto another server. When I run
the script on the remote server itself, the script works as I intend: it
creates a .csv file and uses scp to copy it onto another server. When I
run the script remotely (through an Rconnection in Java), the .csv is
created but the file is not copied onto the other server. Is there any
reason why a system command would work when called locally but not when
called remotely?
The format is as follows:
# create array
write.csv(array, array.csv)
system(scp /{path}/array.csv {remote server}:/{path2})
Again, the script works correctly when run through R on the remote
server, but when I run it through Rserve, everything works except for
the 'system' command. Any insights would be greatly appreciated.
Thanks a lot,
Prasad
[[alternative HTML version deleted]]
__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
