Unique Number Assignment To Each Time

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Curious Mind
Curious Mind 2020-1-18
评论： Curious Mind 2020-1-22
Hi,
I have a series of times in column 1. The times are 1.1, 1.1, 1.1, 1.2, 1.2, 1.2, 2.1, 2.1, 2.1 etc. I want to assign a unique number to each of these times. In order words, each time series should have its own number. Eg, all 1.1 should be assign the number 0, all 1.2 to the number 1 etc. A unique number to each series or repeating time. Any thoughts?
Thanks!

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采纳的回答

Andrei Bobrov
Andrei Bobrov 2020-1-18
a=[1.1, 1.1, 1.1, 1.2, 1.2, 1.2, 2.1, 2.1, 2.1]'
[i,g]=findgroups(a);
out = i - 1;

更多回答（1 个）

Walter Roberson
Walter Roberson 2020-1-18
Use the third output of unique(). Or use findgroups()

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