converting specific string variables to double

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antonet
antonet 2013-6-15
Dear all,
I have the following matrix
A={'name'
'afsaf'
'sfsfs'
'0'
'rpytui'
'0'
'0'
'0'
'dfgl'
'trd'
};
I want to convert the zeros which are string variables to numeric variables; that is
A={'name'
'afsaf'
'sfsfs'
[0]
'rpytui'
[0]
[0]
[0]
'dfgl'
'trd'
};
Is there a way of doing that?
Thanks in advance!

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采纳的回答

the cyclist
the cyclist 2013-6-15
I knew there was an easier way:
A(ismember(A,'0'))={0}

更多回答（3 个）

Jan
Jan 2013-6-17
A(strcmp(A, '0')) = {0}
  1 个评论
Azzi Abdelmalek
Azzi Abdelmalek 2013-6-17
This is faster
A=repmat(A,100000,1);
tic
A(ismember(A,'0'))={0};
toc
tic
A(strcmp(A, '0')) = {0};
toc
Elapsed time is 0.047910 seconds.
Elapsed time is 0.012593 seconds.

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the cyclist
the cyclist 2013-6-15
I am quite sure there is a simpler way, but one way is
A(cellfun(@(x)isequal(x,'0'),A))={0};
Azzi Abdelmalek
Azzi Abdelmalek 2013-6-15
编辑：Azzi Abdelmalek 2013-6-15
A(~cellfun('isempty',strfind(A,'0')))={0}

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