find row index if all column elements are known

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amit jha
amit jha 2019-8-18
编辑： Bruno Luong 2019-8-18
I have a nx3 matrix. I need to find row index if i know all the column entries of a particular row. How to do it in a simple command.
Thanks,
Amit.

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回答（1 个）

Bruno Luong
Bruno Luong 2019-8-18
编辑：Bruno Luong 2019-8-18
If A is your array, for example
A=ceil(10*rand(10000,3))
and you want to find [1,2,3] this command
find(ismember(A,[1 2 3],'rows'))
will return the row index(es) of matched data.

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