MATLAB: How to get values from an array using another logical array

array as indexindexingMATLAB

I have an array 280×5 values, which contains reaction times. I have another array with the same dimensions that stores the trials that fulfill certain condition (a logical array). I want to extract the values from the first array using the second as an index. I have tried just using it as A(B) but it returns all the values as a single column with the reaction times, and I would like the output to be another array with the same dimensions with the reaction times and 0's. Could you guide me into solving this?
Many thanks, Ramiro

Best Answer

Instead of
A(B)
try
A.*B
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