How to produce all possible combination of matrices when deleting vector rows from original matrix?

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Naveed Hossain
Naveed Hossain 2018-8-5
回答： Rik 2018-8-5
I want to delete 5 vector rows from a 40 x 2 matrix, to give me 40C5 possible combinations ie 658 008 possible matrix combinations? Is this possible to do on MATLAB via iteration?
Any suggestions on which functions to use would be appreciated

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Rik
Rik 2018-8-5
This should help you along. The construction with the for-loop makes use of the fact that Matlab loops through the second dimension, so numel(rows) is 5.
data=rand(40,2);
for rows=nchoosek(1:40,5)'
tempdata=data;tempdata(rows,:)=[];
%put actual calculation using tempdata here
end

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