searching cell arrays

44 views (last 30 days)
Brian Haab
Brian Haab on 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?

Accepted Answer

Walter Roberson
Walter Roberson on 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.
  1 Comment
Jan
Jan on 24 Feb 2012
STRNCMP operates on cell strings directly, so you do not need CELLFUN.

Sign in to comment.

More Answers (2)

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

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

Categories

Find more on Characters and Strings in Help Center and File Exchange

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!