Doubts with parfor loop

Hi, I'm a litte bit confused with error given in this parfor loop:

parfor n=1:fbaseDatosAct
 veDelanteMiaTemp=zeros(1,3);
 baseDatosRow = baseDatosAct(n,:);
 veDelanteMiaTemp=vehDelanteMia(baseDatosAct,n,t);
 [baseDatosRow(1),estaParado]=reduceVelocidad(t,baseDatosRow,vmin,veDelanteMiaTemp,pasoTemp);
 baseDatosAct(n,:) =baseDatosRow;<-HERE TROUBLE WITH PARFOR!!
 end

Why in the last sentence do I get a error saying that I cannot use parfoor loop due to the baseDatosAct use?? I've got another code whit a similiar use and I don't get this warning.

Another doubt, I can use pafor loop with logical indexing a matrix like this:

for n=1:1:fbDActual
 indice=find(bDAnterior(:,columnaID)==bDActual(n,columnaID));
     do something...
 end
end

Where bDAnterior and bDActual both are matrixes of nx8.

Thanks Javier

Answer 1

[Edric Ellis]

The problem is that you're using the whole value of 'baseDatosAct' in the line:

    veDelanteMiaTemp=vehDelanteMia(baseDatosAct,n,t);

Is that what you intended? If so, the loop is not order-independent because you're updating 'baseDatosAct' and using the values next time around the loop.

[Javier]

Yes it was. I have to use the whole value of 'baseDatosAct' in the function,however, I found out a solution doing this:

bdAct=zeros(fbaseDatosAct,cbaseDatosAct);

bdAct=baseDatosAct;

parfor n=1:fbaseDatosAct

veDelanteMiaTemp=zeros(1,3);

baseDatosRow = bdAct(n,:);

[veDelanteMiaTemp(1),veDelanteMiaTemp(2),veDelanteMiaTemp(3)]=vehDelanteMia(baseDatosAct,n,t);

[baseDatosRow(1),estaParado]=reduceVelocidad(t,baseDatosRow,vmin,veDelanteMiaTemp,pasoTemp);

bdAct(n,:) =baseDatosRow;

end

baseDatosAct=bdAct