compare a vector with every cells element and get the missing

hi . i have a vector V=[1:100] and a C=cell(1-n) with double[] values . how could i get the values in the vector that are not in any element of cell ? and another question : how could i get a vector with repeats of elements in cell ? for example if there are three 2 in the all elements of cell , in my vector index(2) i have 2 ? thanks a lot !.

[Adam]

Convert C to numeric and use

doc ismember

The second question is basically just a histogram isn't it?

doc histogram

[Hamid Salari]

@Adam i will look into it . thanks .

Answer 1

[Star Strider]

Use setdiff inside cellfun:

V = 1:100;
C = {randi(100, 1, 75)};                            % Create ‘C’

Out = cellfun(@setdiff, {V}, C, 'Uni',0);           % Use ‘setdiff’
Result = [Out{:}]                                   % Dsiplay Result (Not Necessary For The Code)

[Hamid Salari]

@Star Strider . it works on a cell 1*1 . but my cell is 1*n and i need to check all the elements of cell .

Error using cellfun All of the input arguments must be of the same size and shape. Previous inputs had size 1 in dimension 2. Input #3 has size 12

[Star Strider]

It is necessary to use a loop to get separate outputs from each comparison of the elements of ‘C’. (Using repmat with ‘{V}’ fails to do this.)

This should work:

V = 1:100;
C = {randi(100, 1, 75), randi(100, 1, 55)};            % Create ‘C’

for k1 = 1:size(C,2)
    Out{k1} = cellfun(@setdiff, {V}, C(k1), 'Uni',0);   % Use ‘setdiff’
end
Result = [Out{:}];                                      % Dsiplay Result (Not Necessary For The Code)

I do not know what size ‘C’ is, so I am assuming it is (1 x n). If it is (n x 1), change the size dimension to ‘size(C,1)’. (You could also use the length function, but without knowing more about ‘C’, I hesitate to suggest it.)

[Hamid Salari]

@Star Strider. i got the idea behind it . thanks . my current cell is 1*12.

[Star Strider]

My pleasure.

My code should work with it as written.