# Add empty cell inside a cell array considering a single array

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luca on 17 Oct 2019
Answered: Daniya Zafar on 5 Jan 2022
Hi I have a cell array
GGG = {{[1 2 2 1 3 4 9 9 6 1 3 3 2 1 2 4 3 ; 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85],[ 2 2 3 3 4 9 4 9 6 4 9 3 3 2 2 4 ; 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 78]},{[ 2 2 3 3 4 9 4 9 6 4 9 3 3 2 2 4 ; 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 78]}};
given an array
SP= [1 2 3 4 5 6]
I want to add in each cell of GGG a number of empty cell that is equal to the maximum value inside SP minus the actual number of cell in each cell of GGG
CONSIDERING THE FIRST CELL OF GGG, is a 1*2 cell. inside this cell I want to add 6-2=4 empty cell
CONSIDERING THE SECOND CELL OF GGG, is a 1*1 cell, inside this cell I want to add 6-1=5 empty cell
obtaining
GGG = {{[1 2 2 1 3 4 9 9 6 1 3 3 2 1 2 4 3 ; 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85],[ 2 2 3 3 4 9 4 9 6 4 9 3 3 2 2 4 ; 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 78],[],[],[],[]},{[ 2 2 3 3 4 9 4 9 6 4 9 3 3 2 2 4 ; 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 78],[],[],[],[],[]}};
May someone help me with this code?

Guillaume on 17 Oct 2019
Surely, by now, with all the questions you've asked, you should be able to manipulate cell arrays yourself.
Anyway:
desiredlenght = max(SP);
result = cellfun(@(c) [c, cell(1, desiredlength - numel(c))], GGG, 'UniformOutput', false)
##### 1 CommentShowHide None
luca on 18 Oct 2019
Unfortunately still I'm not familiar with the use of cellfun!
In any case thanks Guillaume for all your explanation, I think I've improved my MATLAB knowledge starting from the beginning

### More Answers (2)

Raptrick on 17 Oct 2019
Hi Luca,
GGG = {{[1 2 2 1 3 4 9 9 6 1 3 3 2 1 2 4 3 ; 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85],[ 2 2 3 3 4 9 4 9 6 4 9 3 3 2 2 4 ; 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 78]},{[ 2 2 3 3 4 9 4 9 6 4 9 3 3 2 2 4 ; 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 78]}};
SP= [1 2 3 4 5 6];
for i =1:length(GGG)
for j = 1:addEmptyCells
GGG{i}{end+1} = [];
end
end
Patrick

Daniya Zafar on 5 Jan 2022
add empty cells using {''}

R2019b

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