Classification of data

Hi,

I am trying to classify all elements of a cell array into 3 different arrays, as shown -

if gt(wrist_flex{j},calib_flex)
        x(j)=1;
        y(j)=0;
        z(j)=0;
    elseif gt(wrist_flex{j},calib_flex)
        x(j)=0;
        y(j)=1;
        z(j)=0;
    elseif wrist_flex{j} == calib_flex
        x(j)=0;
        y(j)=0;
        z(j)=1;

calib_flex is a constant. wrist_flex is a column cell array which has its first 1000 points equal to calib_flex. After which it varies rapidly across calib_flex. Now when i run the above program, an error message occurs after 1000th iterations -

??? Error using ==> gt
Matrix dimensions must agree.

Error in ==> classify_atmt1 at 26
    if gt(wrist_flex{j},calib_flex)

I am not able to comprehend this error. Can anyone please help me understand the error and provide an apt solution?

[krs.rb1]

mistake - *elseif gt(calib_flex,wrist_flex{j})

[Walter Roberson]

dbstop at 26 if ~isequal(size(calib_flex), size(wrist_flex{j}))

[krs.rb1]

oh yes ... i c there is a change in size of wrist_flex{j} at 1001. The size changes to [1 9] from [1 10] but since calib_flex is constant its size remains [1 10].

So how do i rectify this ??

[krs.rb1]

well i converted the cell array to numerical array using str2num...n the code worked....

[krs.rb1]

Thanks walter!! :)