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Daniel
Posts:
3
Registered:
9/29/12
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What is the best way to replace certain characters in a string?
Posted:
Sep 29, 2012 10:07 PM
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Hello everyone,
I have a cell array of strings (each cell contains one string). What I need to do is to search for a certain key word in each cell and replace it with another.
For example,
a{1}='I like dogs.';
a{2}='I have three dogs.';
a{3}='One of the dogs is yellow.';
Now say I want to replace all the "dog" with "cat". In each string, the word "dog" occurs at most once. So I do the following
for m=1:length(a)
k=strfind(a{m},'dog');
if ~isempty(k)
a{m}=[a{m}(1:k-1) 'cat' a{m}(k+1:end)];
end
end
It works but pretty slow for large cell array. Any suggestions on the implementation? I appreciate it.
Dan
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