清空筛选条件
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sampling like this expression

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eren eren
eren eren 2013-3-8
i generate a sample for example it's size is 30. And i find its minimum.
for example sample is
A=[1 5 8 9 7 6 4 5] min(A)=1
and i want to delete 1 from A. new A is A=[5 8 9 7 6 4 5]
then i want to sampling 2 element for example b=[9 4]
and i want to delete this numbers from A. new A is A=[5 8 7 6 5]
then this continue when A has no elements.
how can i do this?
sayi= exprnd(100,1,30); enkucuk=min(sayi)
i dont do anything after these steps. Thank you

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回答（1 个）

Azzi Abdelmalek
Azzi Abdelmalek 2013-3-8
A=[1 5 8 9 7 6 4 5]
[val,idx]=min(A)
A(idx)=[]
b=[9 4]
A(ismember(A,b))=[]
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Azzi Abdelmalek
Azzi Abdelmalek 2013-3-8
编辑：Azzi Abdelmalek 2013-3-8
A=[1 5 8 9 7 6 4 5]
b=nchoosek(A,2)
b=b(randi(size(b,1)),:)
Azzi Abdelmalek
Azzi Abdelmalek 2013-3-8
编辑：Azzi Abdelmalek 2013-3-8
%or
A=[1 5 8 9 7 6 4 5]
k=2
idx=randperm(numel(A));
b=A(idx(1:k))

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