How to find multiple duplicates in an array

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Amanda
Amanda 2013-7-11
Hi, i am a beginner in matlab and trying to write a code for my data, but got stuck in this bit. I have a list of names in one vector(varies in length on each loaded data set) and time in another. In this list of names that corresponds to the time, there are at least 9 duplicates of each name, that i want to find and group together into bins and refer to the correct timing.
Example: n = [a b c d e a a e c d a ...]
t = [10.01 2.1 5.01 6.07 9.3 10.02 10.0 9 5.05 6.1 10.001 ...]
how can i ask matlab (7.6) to group all the a together and their t values, then all the b, all the c, and etc.
Much appreciated for any help.
  1 个评论
Jan
Jan 2013-7-11
编辑：Jan 2013-7-11
Is n a cell string? Then this would be better:
n = {'a', 'b', 'c', ...}
What exactly does "group together into bins" mean and what is "the correct timing"? Perhaps it helps, if you post the wanted result for the shown example inputs.

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回答（1 个）

Azzi Abdelmalek
Azzi Abdelmalek 2013-7-11
n = {'a' 'b' 'c' 'd' 'e' 'a' 'a' 'e' 'c' 'd' 'a'}
t = [10.01 2.1 5.01 6.07 9.3 10.02 10.0 9 5.05 6.1 10.001 ]
k=unique(n)
out=[k' cellfun(@(x) t(ismember(n,x)),k,'un',0)']

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