Multiple Conditions with if

Hi,

I am having some problems. I need to apply 4 conditions and find out in which category each element of the input matrix falls. I am attaching the data file and matlab code which I wrote. The output result of first row of X supposed to be [3 4 1 4]. When I am running the code, the result is showing 1 for all elements in X matrix. Can anybody help please?

Answer 1

[James Tursa]

MATLAB does not evaluate compound relational expressions like you are expecting. E.g., these lines

        if D(i,j)<y(i,j)<G(i,j)
            :
        elseif D(i,j)>y(i,j)>H(i,j)

need to be a combination of two separate relational expressions:

        if D(i,j)<y(i,j) && y(i,j)<G(i,j)
            :
        elseif D(i,j)>y(i,j) && y(i,j)>H(i,j)

[Md. Tanjin Amin]

Thank you. I have understood. However, I can not get the desired output by modifying the code. Can you help please?

[Md. Tanjin Amin]

Hi, I have solved the problem. Thank you.

[fuad sharaf]

How had you solved the problem?