Hi,
I'm wondering if anyone can help me. I'm writing java application that using
JRclient and Rserve to communicate with R. I want to get response from R for
command:
x <- rbind(matrix(rnorm(100, sd = 0.3), ncol = 2),matrix(rnorm(100, mean =
1, sd = 0.3), ncol = 2))
kmeans(x, 2, 22, algorithm = "Hartigan-Wong")
and put result of kmeans() function in my TextArea.I've tried something like
that:
zz <- file("ex.txt", "w")
capture.output(kmeans(x, 2, 22, algorithm = "Hartigan-Wong"), file = zz,
append = TRUE)
and then get "ex.txt" file from R and rewrite it to my local file using java
method:
public void saveFileFromServer(Rconnection rConnection, String fileName,
String pathToSave) throws Exception {
RFileInputStream ris = rConnection.openFile(fileName);
FileOutputStream outs = new FileOutputStream(pathToSave + "/"
+ new File(fileName).getName());
byte[] buf = new byte[1024];
int n = 0;
while ((n = ris.read(buf)) != -1) {
outs.write(buf, 0, n);
}
outs.flush();
ris.close();
outs.close();
}
It works fine (i have file "ex.txt" with results) when i run my application
from Eclipse.
Problems starts when i put application in jar. In that case my "ex.txt" file
is empty.
Can anyone tell what i'm doing wrong?
Thanks in advance
Tomek Spulak
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