finding parent words using strfind

2011 11 28
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As in normal case, i will have this huge cell array of words,
wordbank={'back'; 'beast';''fairytale';'aerial';'whale';'astronomy'.......}
I asked the user for a string of letters that might compare with what I have in the wordbank, so I tried to use strfind.
say,
wchoice=input('please enter a valid parent word','s')
then from here I tried to compare which word have similarities from the input with the list of words in wordbank.
so I used strfind(wordbank,wchoice)
which later will give me the cell with indices where the words are similar instead of just displaying what the word is.
I was hoping that something like this can appear if
wchoice='al'
I typed strfind(wordbank,wchoice)
ans=
'whale'
'fairytale'
Could you help me with this?Thank you.

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Walter Roberson
Walter Roberson 2011-11-28

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wordbank(strfind(wordbank,wchoice))

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I thought that would work before but matlab gave me this error instead:
??? Error using ==> subsindex
Function 'subsindex' is not defined for values of class 'cell'
Dear Walter,
is there another way of doing it though?I tried strcmp,and everything that I could with the level I know, but none of it worked out for me.
Walter Roberson
Walter Roberson 2011-11-28
wordbank(~cellfun('isempty',strfind(wordbank,wchoice)))
You are awesome!thank you!!!

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