Create a top hat function

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Jason
Jason 2021-6-28
评论： Jason 2021-6-28
Hello, Im trying to create a top hat function (that is 0 everywhere except between -halfpix & halfpix). the fucll width of the top hat (2* halfpix) is symetrical about the yaxis.
i've created it based in discrete values as below but I would like it as a general function.
x = -20:0.1:20;
t = zeros(1,length(x))
t(x>=-halfpix & x<halfpix) = 1;

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Rik
Rik 2021-6-28
If you realize that you are marking all true locations with 1 and leaving all false as 0, you can use that to make an anonymous function that only casts you logical statement to double.
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Rik
Rik 2021-6-28
You already know how to do that. You already used the code in your own question:
t=@(x) double(x>=-halfpix & x<halfpix)
Jason
Jason 2021-6-28
Perfect, thankyou

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