How do I get MATLAB to automatically create a vector of unique values based on a known vector of values?

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Brad
Brad 2013-10-17
编辑： Azzi Abdelmalek 2013-10-17
Let's say I have a vector of known values:
A = [10;20;30;100;200;10;20;30;40;50];
I'm looking for a way to get MATLAB to automatically create vector B of unique values, based on A.
So for the 7 unique values in A, B = [1;2;3;4;5;6;7]
Is there a way to make this happen?

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采纳的回答

Azzi Abdelmalek
Azzi Abdelmalek 2013-10-17
编辑：Azzi Abdelmalek 2013-10-17
A=[10;20;30;100;200;10;20;30;40;50];
B=1:numel(unique(A))

更多回答（1 个）

Walter Roberson
Walter Roberson 2013-10-17
B = 1 : length(unique(A));

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