How to remove array elements that are elements of a different array

Question

wit221 2016-10-11

编辑： James Tursa 2016-10-11

relations is a cell array of arrays. max_commons is an array.

I would like to go over each cell of relations and remove the elements that are in max_commons from its array. I have no idea how to do it succintly.

I tried such a syntax:

    for k = 1:num
       relations{k} = relations{k}(relations{k}~=max_commons); 
    end

as in relations{k} becomes relations{k} but without the elements in relations of{k} that were also in max_commons.

However, this gives a bunch of errors. Do you know how to achieve the above task?

Answer 1

James Tursa 2016-10-11

编辑：James Tursa 2016-10-11

Assuming relations{k} is some arbitrarily sized array and max_commons is some arbitrarily sized vector:

relations{k} = relations{k}(~ismember(relations{k},max_commons));

Or to do it all at once without the explicit loop:

relations = cellfun(@(x)x(~ismember(x,max_commons)),relations,'uni',false);