deleting words from a cell array

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James Connor
James Connor 2015-11-11
编辑： Mohammad Abouali 2015-11-16
if I have a cell array
x={'areach';'aread';'areal';'areality';'arean';'arear';'areasoner';'areaway';'areca';'arecaceae'}
y='a'
word='areach'
How do I delete all the words from x that do not have y in the positions it appears in word
for example 'a' appears as the 1st and 4th letter of word, delete all words from dictionary that do not have 'a' as their 1st and 4th position letters. so x would become
x={'areach';'aread';'areal';'areality';'arean';'arear';'areasoner';'areaway'}
(it got rid of 'areca' and 'arecaceae)

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采纳的回答

Mohammad Abouali
Mohammad Abouali 2015-11-11
编辑：Mohammad Abouali 2015-11-11
x={'areach';'aread';'areal'; ...
'areality';'arean';'arear'; ...
'areasoner';'areaway';'areca'; ...
'arecaceae'};
y='a';
word='areach';
% This line does the trick;
x=x(cellfun(@(c) all(c(find(word==y))==y),x))
x =
'areach'
'aread'
'areal'
'areality'
'arean'
'arear'
'areasoner'
'areaway'
Note that the position 1 and 4 are not hard coded. They are defined based on the y and word
  1 个评论
Mohammad Abouali
Mohammad Abouali 2015-11-16
编辑：Mohammad Abouali 2015-11-16
you can also use
x=x(cellfun(@(c) all(c(word==y)==y),x))
i.e. without using find().

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更多回答（1 个）

bio lim
bio lim 2015-11-11
x={'areach';'aread';'areal';'areality';'arean';'arear';'areasoner';'areaway';'areca';'arecaceae'};
for n = 1 : length(x)
if ~strcmp(x{n}(4),'a')
x{n}=[];
end
end

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