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Checking whether one row of an array is equal to the rows in a separate array

Asked by Hans123 on 17 Jul 2019
Latest activity Commented on by Star Strider
on 17 Jul 2019
I trying to compare one row of an Array A with all the rows in another array B of the same size, the logical answer will be used in an if condition
The line I have below is what I am using. Currently the arrays are small enough for me to observe there are rows on both arrays that are equal, but the counter is not updating (the counter is my way of keeping track of equal rows).
for k=1:10
if isequal(A(k,1:3),B(:,1:3))
counter=counter+1
...
else
....
end
end
I hope I was articulate enough describe my question, please let me know whether the isequal is the right conditional statement to use

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1 Answer

Answer by Star Strider
on 17 Jul 2019
 Accepted Answer

I would be tempted to use the ismember function with the 'rows' option (or ismembertol with the 'ByRows' option).

  2 Comments

works perfectly, thanks as always Star Strider. :)

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