i need to compare two arrays

Asked by Omar Almahallawy on 25 Mar 2019

Latest activity Answered by Steven Lord on 25 Mar 2019

106 views (last 30 days)

hello, i have a matrix of size (3 x 4 ) and i need to compare each column with a seperate row respectively.

this may seem confusing but bare with me.

for example.

        A= [21 50 60 70
            60 70 80 90
            27 51 38 35]
        
        B= 19 51 60 
        C= 20 60 80 
        D= 80 70 40 
        E= 50 40 95
        
        RESULT= 51 60 70 95
                60 80 80 95
                51 60 40 40

so i want to know how to compare the first column in A with row B and second column in A with row C and so on....

baring in mind that when comparing each element, i need the verry next number from rows B C D and E.

1 Comment

dpb on 25 Mar 2019

We're not so close to be "baring" all, methinks... :)

Clear as mud! :(

'Splain how you came up with the solution by the result of this "comparison"...

1 Answer

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Answer by Steven Lord on 25 Mar 2019

So I think calling interp1 on each column using the 'next' method is what you're trying to do.

A= [21 50 60 70; ...
60 70 80 90; ...
27 51 38 35];
B = [19, 51, 60];
interp1(B, B, A(:, 1), 'next', 'extrap')

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Omar Almahallawy (view profile)