Matrix must be square

function Proses_CC_Callback(hObject, eventdata, handles)
% hObject    handle to Proses_CC (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

load data_x x;
load data_i i;
load data_p p;
load data_l l;

xbar=mean(x);
ibar=mean(i);
pbar=mean(p);
lbar=mean(l);

C1=sum(x-xbar)*(i-ibar)/(sum((x-xbar)^2)*sum(i-ibar)^2)^1.5;
C2=sum(x-xbar)*(p-pbar)/(sum((x-xbar)^2)*sum(p-pbar)^2)^1.5;
C3=sum(x-xbar)*(l-lbar)/(sum((x-xbar)^2)*sum(l-lbar)^2)^1.5;

%C1=(sum((x-xbar)*(i-ibar)))/((sum(x-xbar)^2)*(sum(i-ibar)^2)^1.5);
%C2=(sum((x-xbar)*(p-pbar)))/((sum(x-xbar)^2)*(sum(p-pbar)^2)^1.5);
%C3=(sum((x-xbar)*(l-lbar)))/((sum(x-xbar)^2)*(sum(l-lbar)^2)^1.5);

minimum = min([C1 C2 C3]);
if (C1 == minimum)
    class = 'temuireng'
else if (C2 == minimum)
        class = 'temuputih'
    else (C3 == minimum)
        class = 'temulawak'
    end
    set(handles.minimum, 'string',[ 'rimpang:' , num2str(class)]);
end

can help me? in the command window appears:

??? Error using ==> mpower
Matrix must be square.

Error in ==>
One_Minus_CC_new>Proses_CC_Callback at 267
C1=sum(x-xbar)*(i-ibar)/(sum((x-xbar)^2)*sum(i-ibar)^2)^1.5;

Answer 1

[Matt Fig]

Did you mean to take the element-by-element power of the arrays? Look at the difference:

x = magic(2) % A 2-by-2 matrix, for example.
x^2 % No dot, equivalent to x*x, need to have square matrix.
x.^2 % Note the dot (.)  Need not be a square matrix.

So in your code you use (^2) instead of (.^2), is that what you meant to do?

[Dian Permatasari]

https://docs.google.com/document/d/1zvMfPp275GNoKWw7v6zNWAgkBQ1pqGyc2oHvoMom-1s/edit?pli=1

C1, C2, C3 is the formula of the distance function correlation coefficient method. and i have changed:

C1=sum(x-xbar)*(i-ibar)/(sum((x-xbar).^2)*sum(i-ibar).^2)^0.5;
C2=sum(x-xbar)*(p-pbar)/(sum((x-xbar).^2)*sum(p-pbar).^2)^0.5;
C3=sum(x-xbar)*(l-lbar)/(sum((x-xbar).^2)*sum(l-lbar).^2)^0.5;

but in the command window appears:

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

Error in ==>
One_Minus_CC_new>Proses_CC_Callback at 275
if (C1 == minimum)

[Dian Permatasari]

and I have improved the code:

minimum = min([C1 C2 C3]);

become:

minimum = 1-(abs([C1 C2 C3]);

but all the same error