How do I replace 0 with NaN in an 3D array?

2019 1 28
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更新时间：2019 1 28
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Hello,
I'm novice with matlab and I am looking for analyze a 3D object. However, the zero in my 3D array represent nothing in reality. So I would like replace them by NaN on each z before to perform more analysis of my object.
When I use:
img(img==0) = NaN
it does not work.
Have you another idea ?
Thanks :)

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 采纳的回答

Fangjun Jiang
Fangjun Jiang 2019-1-28

1 个投票

Maybe those values are not strictly zero. Try this example
a=zeros(2,2,2)
a(a==0)=nan

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