how to delete a row by selected randomly from a matrix?

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Shahzad Ali 2017-12-21

评论： Shahzad Ali 2017-12-21

d=2;
for i=1:10
pop(i,:)=rand(1,d);end
M=pop(randi(size(pop,1)),:)
now i want to know that how to delete this M without knowing the row number and the values of the row, just to delete it by using The "M"

Roger Stafford 2017-12-21

This depends on M being exactly equal in each of its elements to the corresponding elements of one of the rows of 'pop':

for k = 1:size(pop,1)
  if all(M==pop(k,:)
    pop(k,:) = []; % Delete the matching row of pop
    break;
  end
end

Shahzad Ali 2017-12-21

Thank you so much sir, it worked.

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