Select from 2D Array by 2 criteria - Matlab
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Sara Aldeeb
le 15 Mar 2017
Modifié(e) : Guillaume
le 15 Mar 2017
I have a 15 * 2 array where the first column represents the area and the second column represents the corresponding circularity to the 15 objects. I need to select the row with maximum area while applying the following condition for the circularity to be > 0.9 and <= 1.2
Example:
- Area Circularity
- ----- -----------
- 22041 1,1703
- 23458 2,8425
- 155 1,4165
- 37 2,1089
- 215 1,5692
- 41 1,0549
- 659 1,7144
- 64 1,0508
- 3 0,3092
- 584 1,2543
- 26 1,1132
- 396 2,9046
- 1 0
- 3 0,8488
- 4 0,4638
- Expected Result:
- 22041 1,1703
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James Tursa
le 15 Mar 2017
Modifié(e) : James Tursa
le 15 Mar 2017
Try this:
y = your 2D matrix
x = y(:,2) > 0.9 & y(:,2) <= 1.2;
z = y(x,:);
[~,k] = max(z);
result = z(k,:);
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Guillaume
le 15 Mar 2017
Modifié(e) : Guillaume
le 15 Mar 2017
filteredarray = yourarray(yourarray(:, 2) > 0.9 & yourarray(:, 2) <= 1.2, :); %filter unwanted rows
[~, maxrow] = max(filteredarray(:, 1)); %find location of max in what's left over
result = filteredarray(maxrow, :) %get the row at location
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