[R] RJava help

Romain Francois romain.francois at dbmail.com
Fri Oct 15 08:24:24 CEST 2010


Le 14/10/10 20:28, lord12 a écrit :
> I need help with RJava. So I run this R code:
>
> library(rJava) #load the rJava library
> .jinit(classpath="c:/Documents and Settings/GV/workspace/Test/src",
> parameters="-Xmx512m")
> #the above is to load the Java virtual machine,
>
>
> x = runif(1000)
> y = runif(1000)
> #the above are two vectors to convolve
>
> #now you can call the Java method as
> z=.jcall("Test", "[D", "convolve", x,y)
>
> I get an error Error in .jcall("Test", "[D", "convolve", x, y) :
>    RcallMethod: cannot determine object class.
>
> Why is this?

It would be useful if you showed your Test java class and repost on the 
appropriate mailing list for rJava: 
http://mailman.rz.uni-augsburg.de/mailman/listinfo/stats-rosuda-devel

Romain

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Romain Francois
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