How to use find function to find input of 'cell' type?

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C Zeng
C Zeng 2015-4-15
编辑： Image Analyst 2015-4-16
Hello, I have 'raw' as an array of all cells read from excel (number or non-number). I would like to find the row numbers where the cell is 'ABC', and return the first row.
When I use 'find' function it returns an error:
>>find(raw, 'ABC','first')
Undefined function 'find' for input arguments of type 'cell'.
Is there a way to find the row for a cell content in Matlab? If so, how can I find the row of both that one vector having some cell, and another vector having another cell?
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Image Analyst
Image Analyst 2015-4-15
ca = {'abc', 'def';
'abcx', 'row 2';
'yy', 'row 2 abc';
'zzzz', 'abc';
'abc', 'line 3'}
[ia, ib] = ismember(ca, 'abc')
firstRow = find(ia(:, 1), 1, 'first')
In the command window:
ca =
'abc' 'def'
'abcx' 'row 2'
'yy' 'row 2 abc'
'zzzz' 'abc'
'abc' 'line 3'
ia =
1 0
0 0
0 0
0 1
1 0
ib =
1 0
0 0
0 0
0 1
1 0
firstRow =
1
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C Zeng
C Zeng 2015-4-15
编辑：C Zeng 2015-4-15
What if I want to find out which row return number j (j changes in the loop), where the column vector is of cells.
if I input: ismember(list, 'j'); it returns an error: Input A of class cell and input B of class cell must be cell arrays of strings, unless one is a string.
Thanks!
Image Analyst
Image Analyst 2015-4-16
编辑：Image Analyst 2015-4-16
Please create a cell array like I did so I can work on it. And tell me which row and column you want to find/detect and return to your program.

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