how to count more than 1 element in cell array?

Hello

I have cell array data example. D = {[1 2 5];[1 2 4 6];[2 4 5 6];[2 5];[1 4 6]}

the answer is 3

I want to know how to calculate a frequency of [2 5] which occurs in D by not using loop.

thank you

[Walter Roberson]

[2 5] must be the only element? 2 and 5 must be adjacent? In that order or order is irrelevant?

Some of these possibilities I don't think can be done without at least an implicit loop using one of the *fun() functions.

Answer 1

[Andrei Bobrov]

Can so?

out = sum(cellfun(@(x)all(ismember([2 5],x)),D));

[Ryan G]

Just beat me to it!

[alice]

thanks

it's work

Answer 2

[Ryan G]

I think this may be close to what you are looking for.

freqElements = sum(cellfun(@(x) mean(ismember([2 5],x)) == 1,D));

[alice]

thanks

it's work

Answer 3

[alice]

Oh thank you so much

Both answers are work!

[Walter Roberson]

cellfun() is really a loop.