MATLAB: How to append NaN to a matrix of 1 row and 1683 columns

chain codeconfusion matrixnan

I have a matrix of 1 row and 1683 columns, I want to append NaN at the end of this matrix so that it can be equal to 1686 columns. I have another matrix of 1 * 1686. Once they both will be equal, I have to apply confusion matrix. Any help in this case will be highly appreciated. Thanks in advance.

Best Answer

YourMatrx(1684:1686) = NaN;

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MATLAB: Replace NaN values with a formula

Hi Caleb,

You can use the function isnan to check if an element of A is not a number. In your case, I would go through every element of A, check if it is NaN and replace it with your formula using C. This can be done with a simple for loop as follows:

for row=2:size(A,1)
    for col=1:size(A,2)
        if isnan(A(row,col))
            A(row,col) = A(1,col) * C(row-1);
        end
    end
end

I hope that helps!

-Bruno

MATLAB: Appending Matrix

So it's not really append A, rather it is setting one element of A to 1 one at a time. What you need is to load A from guidata at the beginning of the callback function. save A to guidata at the end of the callback function. The setting of A to all zeros is better to put in the CreateFcn callback.

Best Answer

Related Solutions

MATLAB: Replace NaN values with a formula

MATLAB: Appending Matrix

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