Delete of a partially zero row

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giuseppe 2014-11-12

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https://ww2.mathworks.cn/matlabcentral/answers/162417-delete-of-a-partially-zero-row

评论： dpb 2014-11-12

Hi,

I need to delete rows in a matrix where the most elements in these rows are zero but one element is not zero. I need to use a for cicle or there is a set of instructions to make this task? I tried:

mini( ~any(mini,2), : ) = []

where mini is a matrix of 100 rows and 7 columns. But this instruction not resolve my problem because one row is

0,0,0,0,0,6.7710

The same is with

mini( ~any(mini,2), 1:6 ) = []

in the 7's column there is the no-zero element. Can someone help me? Thank. Giuseppe

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dpb 2014-11-12

It's ambiguous what your decision criterion is to delete the row -- is it any row which has none or only one non-zero element or some other reason for that row to be deleted?

You can code for any condition you can write a rule for but have to have the rule to follow first.

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