MATLAB: How to do one-hot encoding in MATLAB

01correspondingencodinghotMATLABnumberone

Best Answer

This can be done by using a logical operator '==' as follows:
>> vec = [1 7 10 9 8 6]'; % Create the vector
>> A = (vec==1:10) % Find the column that corresponds to each vector entry
A =
   6×10 logical array
    1  0  0  0  0  0  0  0  0  0
    0  0  0  0  0  0  1  0  0  0
    0  0  0  0  0  0  0  0  0  1
    0  0  0  0  0  0  0  0  1  0
    0  0  0  0  0  0  0  1  0  0
    0  0  0  0  0  1  0  0  0  0
You can learn more about the operator here:
https://www.mathworks.com/help/matlab/ref/eq.html
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