Maximum variable size allowed by the program is exceeded.

It's occuring in the knnclassifier!!! Need help!

Error:

Maximum variable size allowed by the program is exceeded.

Code:

function D = distfun(Train, Test, dist)

%DISTFUN Calculate distances from training points to test points.

[n,p] = size(Train);

D = zeros(n,size(Test,1));

numTest = size(Test,1);

switch dist

    case 'sqeuclidean'

        for i = 1:numTest

            D(:,i) = sum((Train - Test(repmat(i,n,1),:)).^2, 2);

        end

    case 'cityblock'

        for i = 1:numTest

            D(:,i) = sum(abs(Train - Test(repmat(i,n,1),:)), 2);

        end
           .
           .
           .

[Jan]

Please mention the line, which causes the error.

Answer 1

[Daniel Shub]

The maximum variable size depends on your OS and MATLAB version. Assuming a recent 64-bit OS and 64-bit MATLAB, the maximum variable size (~8 TB) is such that you probably don't have enough processing power to do anything with it effectively. For 32-bit systems and some older 64-bit systems you might actually have the processing power to use such a large matrix and could benefit from a OS/MATLAB upgrade.

[Lester Lim]

I tried separating the data, it also works but I have to put in all parts...