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Home/ Questions/Q 3339616
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Editorial Team
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Editorial Team
Asked: May 18, 20262026-05-18T00:30:46+00:00 2026-05-18T00:30:46+00:00

So I am trying to detect if the values in an array is in

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So I am trying to detect if the values in an array is in a certain range and then return a binary logical array i.e. one for true and zero for false. I have this but iPython keeps complaining

D = ( 1 < X[0,:] + X[1,:]) < 2 ).astype(int)

the interesting thing is that just checking one way works totally ok

D = ( X[0,:] + X[1,:]) < 2 ).astype(int)

which I find a bit perplexing.

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  1. Editorial Team
    Editorial Team
    2026-05-18T00:30:47+00:00Added an answer on May 18, 2026 at 12:30 am
    Y=X[0,:]+X[1,:]
    D = ((1<Y) & (Y<2)).astype(int)
    
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