compare length of arrays in a cell

good morning, I have acell array and i want to compare cell's length. Till now I used just t compare the equality of the cells using:
isequal(A{1,:})
A is the cell array.
I tried to run
isequal(length(A{1,:}))
but that's not correct.
What is the easiest way to achieve that, without using a or cycle???
Thanks

6 Comments

Could you give an example of A?
Do you really mean cell length or cell size? length is just whichever of the size dimensions is the larger, size is the full measure incorporating all dimensions.
A= [1x218 cell
1x211 cell
1x209 cell
1x116 cell
1x215 cell
1x215 cell
1x215 cell
1x202 cell]
so in this case isequal(if you imagine the cellS as "cut" from a larger, equal cell) would be = 0,
but if
A=[1x215 cell
1x215 cell
1x215 cell]
it would also give me 0, and I want 1 as an answer in this case!!
That's why I don't have any problems using length! (but how??) Thanks
Do you really mean
A=[1x215 cell
1x215 cell
1x215 cell]
and not
A={1x215 cell
1x215 cell
1x215 cell}
?
yes of course, I have just mistaken the brackets.

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 Accepted Answer

Stephen23
Stephen23 on 13 Mar 2015
Edited: Stephen23 on 13 Mar 2015
This is easy to do in one line using cellfun , diff and any:
>> A = {cell(1,3),cell(1,3),cell(1,3)};
>> B = {cell(1,5),cell(1,2),cell(1,9)};
>> any(~diff(cellfun(@numel,A)))
ans =
1
>> any(~diff(cellfun(@numel,B)))
ans =
0

More Answers (1)

per isakson
per isakson on 12 Mar 2015
Edited: per isakson on 12 Mar 2015
A hint based on some guessing
cac = {'abc','def', 'ghi'};
tmp = cellfun( @length, cac, 'uni', false );
isequal( tmp{:} )
returns
ans =
1
I failed to make a one-liner
&nbsp
Addendum
A variant more in line with the comments to the question
cac = {'abc','def', 'ghi'};
cac = { cac, cac, cac };
tmp = cellfun( @length, cac, 'uni', false );
isequal( tmp{:} )
returns
ans =
1

2 Comments

ludvikjahn
ludvikjahn on 12 Mar 2015
Edited: ludvikjahn on 12 Mar 2015
sorry, what stands 'uni' for? just as an example of length?
per isakson
per isakson on 12 Mar 2015
Edited: per isakson on 12 Mar 2015
It's short for 'UniformOutput'. See cellfun, Apply function to each cell in cell array

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on 12 Mar 2015

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on 13 Mar 2015

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