MATLAB: How to get MATLAB to extract a specific value in an array

extract valueMATLABthresholds

I’ve got a 6 x 2 double that looks like this;
AA =    
                       1.5          1269.52132592592
                       2.5          1331.48519957181
                       3.5          350.503689964563
                       4.5          105.680838840683
                       5.5          33.4192155773747
                       6.5          32.0466481498415
I’m looking to identify the indices in column 1 when the data in column 2 is less than 105, and then extract the first actual value from column 1 that meets this criteria.
>> BB = (AA(:,2) < 105) results in:
BB =
       0
       0
       0
       0
       1
       1
But how do I use MATLAB to extract and save the actual value of 5.5?

Best Answer

idx= AA(:,2)<105
out=AA(idx,1)
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