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MByk
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Accumulating Unique Set Values

MByk
さんによって質問されました 2019 年 2 月 20 日
最新アクティビティ MByk
さんによって 編集されました 2019 年 2 月 20 日
I have 10 sets (each set includes 1s and 0s: 1 means element selected) and trying to find the unique sets and store its element indices. But when there is only one unique set following code gives error. How can I fix it? Thanks for the help.
[Rw,Cl] = find(unique(FSet,'rows','stable'));
UnqFS = accumarray(Rw,Cl,[], @(f) {sort(f).'});
celldisp(UnqFS)

  2 件のコメント

Jos (10584)
2019 年 2 月 20 日
What is Fset? A 10-by-N array?
Perhaps you can give a (small) example of the input and expected output?
MByk
2019 年 2 月 20 日
Yes, it is 10 by N binary array. But i think i solved the problem like this.
[Rw,Cl] = find(unique(FSet,'rows','stable'));
if iscolumn(Rw)
UFS = accumarray(Rw,Cl,[], @(f) {sort(f).'});
celldisp(UFS)
end

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1 件の回答

Jos (10584)
回答者: Jos (10584)
2019 年 2 月 20 日
 採用された回答

My suggestion: first find the unique rows of Fset, and then get the column indices for each row
FSet = randi(2,10,3) -1 % example
UFS = unique(FSet,'rows','stable')
UnqFS = arrayfun(@(r) find(UFS(r,:)), 1:size(UFS,1), 'un',0)
celldisp(UnqFS)

  1 件のコメント

MByk
2019 年 2 月 20 日
Thank you.

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