Help R.matlab

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Help R.matlab

Thomas Van Boeckel
Dear useRs,

This post relates to a similar problem (
https://stat.ethz.ch/pipermail/r-help/2010-August/250719.html)

I am using R.matlab (R.matlab v1.6.3 (2013-01-17) to iterate matrix
multiplication in matlab 2012Rb.  Everything works fine except for some
random iteration of my model the command getVariable would fail to bring
matlab objects back to R. Could someone help me understand what's going on
behind the scenes ?

Here is the command lines I use th launch the matlab server
library(R.matlab)
Matlab$startServer()
Sys.sleep(10)
matlab <- Matlab(host="localhost")
if (!open(matlab))
throw("Matlab server is not running: waited 30 seconds.")
setVerbose(matlab, -2)

Here is the eval expression used followed by the error displayed in the
matlab command window.

Received cmd: 3
Will read MAT file:
"C:\Users\tvb\AppData\Local\Temp\RtmpqqP3O8\file129c25a537b7.mat"
Received cmd: 1
"eval" string: "
     Tr = TrA(INF,:).* IHo;
     Susc = SHo * Sc;

     myKS = ones(N,1);
     myKS(find(moveBan > 0),1) = KernelShrinkage;
     myKS = gpuArray(myKS);

     dMG = gpuArray(dM(:,INF));

     K1G = exp(-kparShort*(dMG));
     K1G = bsxfun(@times, myKS,K1G);

     K2G = exp(-kparLong*(dMG));
     K2G = bsxfun(@times, myKS,K2G);

     FoIG=Susc.*((K1G*(Tr(:,1)+Tr(:,2)+Tr(:,3))) + (K2G*Tr(:,4)));
     ProbI = 1-exp(-FoIG);
     res = gather(ProbI);
     "
Sent byte: 0
Received cmd: 1
"eval" string: "variables = {'res'};"
Sent byte: 0
Received cmd: 2
save(tmpname, '', 'res')
answer=0
Error using
MatlabServer
(line 147)
Java exception
occurred:
java.net.SocketException:
Connection reset

    at
    java.net.SocketInputStream.read(Unknown
    Source)

    at
    java.net.SocketInputStream.read(Unknown
    Source)

    at
    java.io.DataInputStream.readByte(Unknown
    Source)

--

--------------------------------------------------
Thomas Van Boeckel
FNRS Research Fellow
Lutte biologique et Ecologie spatiale (LUBIES)
Universite Libre de Bruxelles CP 160/12
50, av F.D. Roosevelt  1050, Bruxelles BELGIUM
<http://www.ulb.ac.be/sciences/lubies/mgilbert.html>
Tel:             +32-2-650.37.81
---------------------------------------------------

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