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matlab compactibilty

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Aldin
Aldin on 14 Mar 2012
Hello people,
Here is my problem:
I have created jar file in MATLAB and i use this jar file in JAVA (NetBeans).
Here is my function in m-file: (name: matrica.m)
function out = matrica(a)
out = a(:,1) %a is matrix
end
Here is my code in JAVA:
import com.mat.*;
import com.mathworks.toolbox.javabuilder.*;
public class KlasaMat {
/**
* @param args the command line arguments
*/
public static void main(String[] args) throws MWException {
int matrica[][] = new int[3][3];
matrica[0][0] = 1;
matrica[0][1] = 2;
matrica[0][2] = 3;
matrica[1][0] = 4;
matrica[1][1] = 5;
matrica[1][2] = 6;
matrica[2][0] = 7;
matrica[2][1] = 8;
matrica[2][2] = 9;
KlasaMatlab k = null;
k = new KlasaMatlab();
Object[] matrica1 = k.matrica(1, matrica);
System.out.println(matrica1[0]);
}
}
But always get an error like this:
{??? Error using ==> matrica
Too many input arguments.
}
Exception in thread "main" ... Matlab M-code Stack Trace ...
com.mathworks.toolbox.javabuilder.MWException: Error using ==> matrica
Too many input arguments.
at com.mathworks.toolbox.javabuilder.internal.MWMCR.mclFeval(Native Method)
at com.mathworks.toolbox.javabuilder.internal.MWMCR.access$600(MWMCR.java:25)
at com.mathworks.toolbox.javabuilder.internal.MWMCR$6.mclFeval(MWMCR.java:918)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.mathworks.toolbox.javabuilder.internal.MWMCR$5.invoke(MWMCR.java:816)
at $Proxy0.mclFeval(Unknown Source)
at com.mathworks.toolbox.javabuilder.internal.MWMCR.invoke(MWMCR.java:492)
at com.mat.KlasaMatlab.matrica(KlasaMatlab.java:195)
at KlasaMat.main(KlasaMat.java:37)
Java Result: 1
BUILD SUCCESSFUL (total time: 6 seconds)
What to do?
  8 Comments
Aldin
Aldin on 14 Mar 2012
Well-intentioned proposal: Restrict users to the three questions a day. Can i delete my accepted questions and answers?

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Accepted Answer

Friedrich
Friedrich on 14 Mar 2012
Hi,
the data type you use to pass the matrix down to the ML function is wrong. I think the function signature must be:
public Object[] matrica(int i, Object... os)
So Object and not int[][] is needed => Try
Object[] matrica1 = k.matrica(1, (Object)matrica);
  13 Comments
Friedrich
Friedrich on 15 Mar 2012
Good morning,
I would say
int[][] out = (int[][])((MWNumericArray)matrica1[0]).toIntArray();

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