Hi, I want to group my data into 11 groups

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Alamgir M S M 2019-3-9

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https://ww2.mathworks.cn/matlabcentral/answers/449110-hi-i-want-to-group-my-data-into-11-groups

评论： Alamgir M S M 2019-3-10

This is my Data-

[705.7142857 705.7142857 173.4285714 84.71428571 232.5714286 232.5714286 114.2857143 55.14285714 25.57142857 74.85714286 35.42857143 15.71428571 5.857142857 5.857142857].

I want to group same data into 1 group. This is 14*1 matrix where it has 3 pairs(705.7142857 705.7142857, 232.5714286 232.5714286 & 5.857142857 5.857142857) of same value data. So, I want these 3 pairs into 3 groups and rest of them into other 8 groups.

Is there anybody who can help me to code this?

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采纳的回答

Walter Roberson 2019-3-9

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https://ww2.mathworks.cn/matlabcentral/answers/449110-hi-i-want-to-group-my-data-into-11-groups#answer_364549

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Supposing your data is in vector v then

[~, ~, uidx] = unique(v);
grouped = accumarray(uidx, v, [], @(V) {V});

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Alamgir M S M 2019-3-10

Hello Walter,

Do you know any method to keep the grouping in the same sequence as my original data?

Your code and mine both are working to make group but it's changing the sequence. it's following the ascending format.

Is there any method just to group only same values but not change the sequence?

Alamgir M S M 2019-3-10

在 MATLAB Online 中打开

This worked as I inteded:

y=[705.7142857
7142857
4285714
71428571
5714286
5714286
2857143
14285714
57142857
85714286
42857143
71428571
857142857
857142857];
group = findgroups(y);
uniqueGroups = unique(group,'stable');