searching cell arrays

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Brian Haab
Brian Haab am 24 Feb. 2012
I want to find the index of a cell array that contains a specific string, but the search and find functions don't take cell arrays as arguments. How do I return the cell number that contains the string?

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Walter Roberson
Walter Roberson am 24 Feb. 2012
Should the cell exactly match the specific string? If so then use ismember().
Should the cell member start with the specific string? If so then cellfun() and strncmp()
Should the cell member contain the specific string as a substring somewhere in it? If so then cellfun() and strfind() and isempty()
The matching process on a cellstr can also be done by regexp(); you might need to cellfun() isempty() to determine the logical result for each entry. It is, though, well suited to returning substring locations, and if you have time it would be worth reviewing regexp() as a serious possibility.
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Jan
Jan am 24 Feb. 2012
STRNCMP operates on cell strings directly, so you do not need CELLFUN.

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Weitere Antworten (2)

Jan
Jan am 24 Feb. 2012
C = {'abc', 'hello', '81'}
strcmp(C, 'hello')
% >> 0 1 0
find(strcmpi(C, 'HELLO'))
% >> 2

the cyclist
the cyclist am 24 Feb. 2012
Here's one way, similar to Jan's:
C = {'abc', 'hello', '81'};
find(ismember(C,'hello'))

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