How do I get the indices of non-empty cells from a cellstr array?

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Robert Moss
Robert Moss 2012-7-25
I am using regexp to determine which cells in a cellstr array contain the characters of interest. Regexp returns a cell array with [1] where there is a match, and [] where it does not match. What is the best way to get the indices of the [1] (matching) cells? The find function will not operate on cell arrays. Using cell2mat returns an array with all empty [] cells removed.
Obviously I could loop through the thing and figure it out the hard way, but I'm guessing there is a simpler "MATLAB Way" to do it.

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Honglei Chen
Honglei Chen 2012-7-25
编辑：Honglei Chen 2012-7-25
Here is an example
x = {1,[]}
find(~cellfun(@isempty,x))

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