Hi list,
I'm wanting to use a matrix as input to some java code, but I seem to be
unable to do this (See code below). When searching online for a solution I
found that rJava 0.5-2 (the version under development not yet in CRAN) is
adding "direct support for raw vectors as method parameters". Is this
related?
I also tried to use .jarray / .jcast in various combinations to no avail.
The only way I can think of to solve this is to modify the java code to
allow me to upload a row of the matrix one at a time.
Any other ideas?
> require(rJava);
Loading required package: rJava
> t = rbind(c(1,2,3),c(2,3,4),c(1,2,10));
> .jinit()
> distanceMatrix = .jnew("data/structure/DistanceMatrix");
> .jmethods(distanceMatrix);
... other methods omitted for brevity ...
[4] "public void data.structure.DistanceMatrix.setDistances(double[][])"
> .jcall(distanceMatrix, "V", "setDistances", as.matrix(t));
Error in .jcall(distanceMatrix, "V", "setDistances", as.matrix(t)) :
method setDistances with signature ([D)V not found
Calls: .jcall -> .External
Execution halted
Thanks in advance,
ben
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