search for: getruntim

...e process hangs forever. Martin Studer, the maintainer of XLConnect kindly investigated the issue, identified rJava as a possible cause of the problem: This does not work (hangs): library(parallel) require(rJava) .jinit() res <- mclapply(1:2, function(i) { J("java.lang.Runtime")$getRuntime()$gc() 1 }, mc.cores = 2) but this works: library(parallel) res <- mclapply(1:2, function(i) { require(rJava) .jinit() J("java.lang.Runtime")$getRuntime()$gc() 1 }, mc.cores = 2) To cite Martin, it seems to work with mclapply when the JVM process is initialized after...

Hi the list: I can not create R process from Java application with my linux box, the process never was created, or just terminated immediately after I called Runtime.getRuntime().exec(...) The command lines I have tried are(the paths are all correct): "/bin/sh /usr/bin/R" "/bin/sh -c /usr/bin/R" "/usr/lib/R/bin/exec/R"(also set R_HOME=/usr/lib/R) I also tried ProcessBuilder, which is no help. I'm confused, is this possible?...

Im doing an aplication in Java and i have a program made in R what i want to launch with Java. I have the following instructions: Runtime r = Runtime.getRuntime(); try { System.out.println ("Llamada a R..."); p = r.exec(sRutaR); } catch (IOException e) { System.out.println ("Error lanzando R: " + e.getMessage()); e.printStackTrace(); } catc...

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 calli...

...ava.io.*; /** * * @author markus */ public class Java_R { /** Creates a new instance of Java_R */ public Java_R() { } /** * @param args the command line arguments */ public static void main(String[] args) { try { Process process = Runtime.getRuntime().exec("R --no-save"); //Process process = Runtime.getRuntime().exec("R --help"); BufferedReader in = new BufferedReader(new InputStreamReader(process.getInputStream())); BufferedReader reader = new BufferedReader(new java...

...ibrary, a new Graphics window frame pops up. Could any onw know how can avoid it. Best Saeede class testReserve { public static void main(String[] args) { RServeConnection rsCon = null; Rconnection c = null; Process proc = null; try { Runtime rt = Runtime.getRuntime(); proc = rt.exec(generalMetaData.rserveDir); try { c = new Rconnection(); c.eval("library(grDevices)"); // c.eval("graphics.off()"); c.eval("postscript()"); //load library c.eval("library(tools)");...

...m java on windows vista with cygwin installed. Its strange as pasting the exact same command into a command shell works fine. My test java call looks like this. * String[] envVars = {"PATH=c:/cygwin/bin;%PATH%"}; File workingDir = new File("c:/cygwin/bin/"); Process p = Runtime.getRuntime().exec("c:/cygwin/bin/rsync.exe -verbose -r -t -v --progress -e ssh /cygdrive/c/Users/dokeeffe/workspace/jrsync/ www.servername.net:/home/dokeeffe/rsync/",envVars,workingDir); * Then I start 2 stream reader threads to capture and log the inputStream and errorStream of the Process p. Her...

...; String[] commands = new String[] { > "/Users/dlippolt/.azerup/rsync", > "--daemon", > "--config=/Users/dlippolt/.azerup/rsyncd.conf", > "--port=2874" > }; > Process child = Runtime.getRuntime().exec(commands); > } catch (IOException e) { > System.err.println (e); > } > >-damon > >--- Drew Lippolt <lists-rsync@azera.net> wrote: > > > >>rsync and ajug lists, >> >>been pulling my hair out on this one. >> >>i h...

Hello! I'm trying to get an array of bytes from graphic images generated by R. Here, you can see my Java code: -------------------------------------------------------------------------------------------------------------------------- Process p = Runtime.getRuntime().exec("C:/Arquivos de programas/R/rw1090/bin/Rterm.exe --no-save"); DataOutputStream output = new DataOutputStream(new BufferedOutputStream(p.getOutputStream())); DataInputStream input = new DataInputStream(new BufferedInputStream(p.getInputStream())); // output.writeBytes("pie(...

...bpthread.so.0 #14 0xf4011e7e in clone () from /lib/libc.so.6 The java file itself is very simple: public class NumProcs { /** * Displays the number of processors available in the Java Virtual Machine */ public static void main(String[] args) { Runtime runtime = Runtime.getRuntime(); int nrOfProcessors = runtime.availableProcessors(); System.out.println("Number of processors available to the Java Virtual Machine: " + nrOfProcessors); } } I just updated to the latest revision in svn. Michael nicolas geoffray wrote: > Hi Michael, > &g...

...s); // this is just for local playback, a demo only speexDecode(bytes, c); p.write(bytes, 0, length); // THIS IS WHERE A FRAME WAS WRITTEN FOR PLAYBACK } }); p.start(); r.start(); Runtime.getRuntime().addShutdownHook(new Thread() { public void run() { speexDestroy(); } }); _________________________________________________________________ Invite your mail contacts to join your friends list with Windows Live Spaces. It's easy! http://spaces.li...

I have been doing some programming with java servlets for data collection. I was wondering if there is a way to connect to the R-server using java to do data analysis. A java-interface or some connection class. I think there is some similar facility with SAS, although I have not looked at it. Richard Piper RNS Hospital, Sydney.

I'm developing a Java module which exec's R by means of the java.lang.Runtime class. R is started from Java with code similar to p = Runtime.getRuntime().exec("/usr/bin/R --no-save"); Java then controls R by sending and receiving messages over R's STDIN and STDOUT. This works well except when plots are displayed to the screen. The windows are non interactive. They don't redraw themselves if they resided, icon-ized , or obscure...

...I've heard you should use SJava). Here are other alternatives that are easy to implement and that you should consider depending on what you want to do: 1- one is to use R in batch mode ie you create a file in your java code with all the R commands and send it to R (via Process pc=Runtime.getRuntime().exec(Rcall); )and then R creates an outputfile with all the results. The matter with this is that there is no interactivity, variables are not kept, you have to parse the outputfile, ... (see the above article (see ? FFinterface)) 2- another one is to use the R server developed by Simon Urba...

...Message().equals("Cannot connect: Connection refused")) { try { String rserveStartCommand = "R CMD Rserve --vanilla"; //do a blocking call to the shell command for starting Rserve int exitValue = Runtime.getRuntime().exec(rserveStartCommand).waitFor(); //if it returned success, try connecting again if (exitValue == 0) return new Rconnection(); //otherwise, Rserve is probably not installed else...

...////////////////////////////////////// Here are other alternatives that are easy to implement and that you should consider depending on what you want to do: 1- one is to use R in batch mode ie you create a file in your java code with all the R commands and send it to R (via Process pc=Runtime.getRuntime().exec(Rcall); )and then R creates an outputfile with all the results. The matter with this is that there is no interactivity, variables are not kept, you have to parse the outputfile, ... (see the above article (see § FFinterface)) 2- another one is to use the R server developed by Simon Urba...

Madame, I've read your answer for using R from Java, you've sais: one is to use R in batch mode ie you create a file in your java code with all the R commands and send it to R (via Process pc=Runtime.getRuntime().exec(Rcall); )and then R creates an outputfile with all the results. My question is how to do a process in Java and do I need to change the path of Java or R to let Java call R, What configuration should I do??? and Do I need to add somehting to a Java program ??? Thank you in advance...

I have tried using the following piece of Java code to start Rserve on my Linux PC without success. try { String command = "R CMD Rserve "; Process p = Runtime.getRuntime().exec(command); returnCode = p.waitFor(); if (returnCode != 0) { errorMessage = "Unexpected return code = " + returnCode; } } catch (Exception e) { errorMessage = "Exception in running :" + e; } I did not get any non-zero return code or error message. It works when I ru...

I'm expirimenting with Cepstral via swift.agi. It loads w/ no problem, but there is a fairly long separation between words -- almost as if it is processing one word at a time, rather than stringing a phrase together. When I run cepstral with a similar script, but not through an actual call from asterisk the separation between words is short and natural. I'd really appreciate

..., > -tony > > > "anthony.ferrari at ensimag.imag.fr" <ferraria at ensisun.imag.fr> writes: > > > 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...