how to find the indices of some values in a matrix

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nasibeh parsaei
nasibeh parsaei 2014-5-28
评论： Star Strider 2014-5-28
Hi everybody,
I have a 501*2 matrix,and I want to find the indices of two elements. I use find(X==x0) and find(X==x1) to find the elements, I know that these elements exist, but it give me nothing! it gives me one but not the other one! what is the solution? I used strfind(X,x0) also but it has the same problem!

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回答（1 个）

Star Strider
Star Strider 2014-5-28
It should find all of them.
Try:
[r0,c0] = find(X==x0)
[r1,c1] = find(X==x1)
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Mahdi
Mahdi 2014-5-28
Oh wow! I totally forgot about it! I edited my answer to fix it.
Star Strider
Star Strider 2014-5-28
Edited mine also, since my previous edit now has no context.

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