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How to Select a distinct subset of a CellArray

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Léon
Léon 2013-6-17
Hello,
please consider the following problem:
x = {1,1;1,2;1,3;2,1;2,2}
[C,IA,IC] = unique(x(:,1))
C(1) % ==> is 1, now I want to get all rows of x where we have a 1 in the first column.
Would be super glad to get a tip how to achieve that!

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回答（2 个）

David Sanchez
David Sanchez 2013-6-17
v = find(x(:,1)==C(1))
Andrei Bobrov
Andrei Bobrov 2013-6-17
x = [1,1;1,2;1,3;2,1;2,2];
out = x(x(:,1) == 1,:);

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