Using 1s and 0s to change data to NaN

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Robert
Robert 2015-7-14
评论： Robert 2015-7-14
Suppose I have 2 arrays
A = [1,2,3,4,5,6,7,8]
B = [0,1,1,0,1,0,0,1]
I only want to keep the numbers that match 1s in a second array and turn 0s to NaN, So the output should be
C = [Nan,2,3,NaN,5,NaN,NaN,8]
Is there a way to do this?
The actual situation I want to apply it to has much more data but I assume the concept will be transferrable

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Azzi Abdelmalek
Azzi Abdelmalek 2015-7-14
A = [1,2,3,4,5,6,7,8]
B = [0,1,1,0,1,0,0,1]
C=A;
C(~B)=nan

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