I get an error, could you guys help me to figure out?

Error using bsxfun Out of memory. Type HELP MEMORY for your options.

Error in classreg.learning.internal.wnanmean (line 12) X = bsxfun(@times,X,W);

Error in pca (line 284) mu = classreg.learning.internal.wnanmean(x, vWeights);

Error in princomp (line 29) [varargout{1:nargout}]=pca(varargin{1},'Algorithm','svd','Economy',fEconomy);

Error in pca_for_Zhen (line 36) [coeff, score, latent]=princomp(data,'econ');

 [fname pname]=uigetfile('*.*','Please click any image in your folder');
cd(pname);
filenamelist=dir(pwd);
nel=length(filenamelist);
index=0;
sampleImage=im2double(imread(fname));
vsampleImage=sampleImage(:);
[numRows numCols]=size(sampleImage);
data=zeros(size(vsampleImage,1),200);
label='Zhen sample';

 for i=3:1:102   
    % here you are try from 3 (the first image with signal) to any arbitrary
    % number and find out how many frames you need in your case. This number
    % is different since the exposure time and frame rate is different from
    % our setup to your imaging setup.
    if filenamelist(i).isdir~=1
        if mod(i,1)==0
            index=index+1
            fname=filenamelist(i).name;
            tempData=im2double(imread(fname));
            data(:,index)=tempData(:);
        end
    end
end

[coeff, score, latent]=princomp(data,'econ');
n=score>=0;
posscore=n.*score;
m=score<=0;
negscore=m.*score;

 figure

      for j=1:9
    subplot(3,3,j)
    pcolor(reshape(score(:,j),numRows,numCols));axis image;shading flat;axis ij;
    text(5,20,[label ' ' sprintf('%d',j)],'Color','w','FontWeight','bold')
    axis off;
    colormap jet;
end
cd('..');
%print(gcf,'-dpdf',[label ' components.pdf']);

%rgb overlay
impos=zeros(numRows,numCols);
%positive

 impos(:,:,1)=reshape(posscore(:,2),numRows,numCols);
impos(:,:,2)=reshape(posscore(:,3),numRows,numCols);
impos(:,:,3)=reshape(posscore(:,4),numRows,numCols);
for k=1:3

    impos(:,:,k)=impos(:,:,k)/max(max(impos(:,:,k)));
end
figure
image(impos);
axis image;
title([label ' Positive']);
%print(gcf,'-dpdf',[label ' positive.pdf']);

%negative

 imneg=zeros(numRows,numCols);

imneg(:,:,1)=reshape(-negscore(:,2),numRows,numCols);
imneg(:,:,2)=reshape(-negscore(:,3),numRows,numCols);
imneg(:,:,3)=reshape(-negscore(:,4),numRows,numCols);
for k=1:3

    imneg(:,:,k)=imneg(:,:,k)/max(max(imneg(:,:,k)));
end
figure
image(imneg);
axis image;
title([label ' Negative']);
%print(gcf,'-dpdf',[label ' negative.pdf']);

imoverlay=zeros(numRows,numCols); for k=1:3

 imoverlay(:,:,k)=impos(:,:,k)+imneg(:,:,k);
imoverlay(:,:,k)=imoverlay(:,:,k)/max(max(imoverlay(:,:,k)));

end
figure
image(imoverlay);
axis image;
title([label ' Overlay']);

[Yawar Rehman]

I dont know why you are getting this error but I think you may increase your Java Heap Memory by clicking File>>Preferences>>Java Heap Memory

[Guillaume]

The error has nothing to do with Java or the Java heap memory. Increasing the heap memory won't help solve the error. If anything it will make it even more likely as it'll reduce the memory available for matlab arrays.

Zhen, I would put a breakpoint on the line with the call to princomp and when the breakpoint is hit, look at what memory and whos tell you.

[Stephen23]

Zhen Weng: please do not post the same question multiple times.

Your last post of this question generated two comments giving advice that you should format your code to be more readable, and also to give some details of what you understand of the problem. This advice is aimed to make it easier for people to help you: spamming the same question multiple times will discourage people from helping you. Please simply edit your original question, or add comments to clarify details.

Answer 1

[Iain]

The error is that something is using too much memory. If your images are huge, this is a possible result.

You have a few ways of dealing with it:

 1. Increase the amount of RAM you have on the system you're using. 
 2. Reduce the amount of stuff you're running to increase usable RAM (e.g. outlook, word, excel, etc.)
 3. Reduce the amount of RAM you need. - Try with 2 files, rather than 101.

Answer 2

[xing peng]

for the question of:

   Error in princomp (line 29) [varargout{1:nargout}]=pca(varargin{1},'Algorithm','svd','Economy',fEconomy);

please try set path as the default.

[Walter Roberson]

That will not help with Out Of Memory problems.