Compare rows from different columns

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Scott Dean Seedell
Scott Dean Seedell 2024 年 2 月 17 日
回答済み: Star Strider 2024 年 2 月 17 日
I'm sure this isn't difficult but my brain is struggling a little:
I want to compare two column vectors and see if any of the values in the 1st are larger than any of the corresponding values in the 2nd.
For instance, if row 8 is larger in the 2nd column than the 1st.
Or if row 6 is larger in the 2nd column than the 1st.

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Star Strider
Star Strider 2024 年 2 月 17 日
One approach —
A = randi(50,10,2)
A = 10×2
50 1 2 25 44 38 48 14 46 12 42 9 2 28 4 13 34 18 2 2
Col_2_Larger = A(:,2) > A(:,1)
Col_2_Larger = 10×1 logical array
0 1 0 0 0 0 1 1 0 0
ColNr = find(Col_2_Larger);
fprintf('Col 2 larger in row %d\n', ColNr)
Col 2 larger in row 2 Col 2 larger in row 7 Col 2 larger in row 8
.

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