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Replacing min and max values

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Harel Harel Shattenstein
回答： Star Strider 2018-3-25
For a given matrix I need to replace each element which is not min or max with the value 99
For example let
M=[5 0 2;8 3 1;1 8 0]
I tried the following code
M(M~=min(M(:))|M~=max(M(:)))=99;
but it replace all the matrix elements include 8 and 0 which are the max/min elements

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回答（1 个）

Star Strider
Star Strider 2018-3-25
Use ‘logical indexing’:
M=[5 0 2;8 3 1;1 8 0];
Mn = M == min(M)
Mx = M == max(M)
See the documentation on Using Logicals in Array Indexing (link).
I leave the rest to you.

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