how can i delete every row with the same number?

Question

Andrew 2014-1-24

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https://ww2.mathworks.cn/matlabcentral/answers/113626-how-can-i-delete-every-row-with-the-same-number

评论： Andrew 2014-1-24

C =

>> e = unique(C, 'rows')

e =

if a have rows with the same numbers with unique(C, 'rows') i delete them but how can i delete every row with the same number?

for example

2 2

thank you

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Answer 1

Image Analyst 2014-1-24

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https://ww2.mathworks.cn/matlabcentral/answers/113626-how-can-i-delete-every-row-with-the-same-number#answer_122096

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Try this:

C =[...
     2     4
     2     4
     2     2
     2     2
     3     1
     3     4
     2     4
     3     4
     4     3]
 % Delete row if first element in a row
 % equals the second element. (Must be integers).
 rowsToDelete = C(:,1)==C(:,2)
 C(rowsToDelete,:) = []