How do I store output from double for loops, I only get the last iteration?

Hi, I have forgot how to store my output from the following for loop. I only recover the last iteration of my outer for loop but I would like to store all the data in either one long cell or one cell for each iteration. Is it possible to this and in that case could someone please help? The output cell is flygplatsmetar.

Thank you!

for l = 1:length(Data);
s = strfind(Data{l},a);
empty=zeros(1,length(Data{l}))';
j=0;
    for k = 1:length(Data{l})
        ind = find(s{k});
        if ind==1;
    empty(k)=j+1;
        end
    end
    metar = find(empty);
    Nydata = Data{l};
    flygplatsmetar = Nydata(metar);
end

Answer 1

[KSSV]

flygplatsmetar  = cells(length(Data),1) ;
for l = 1:length(Data);
s = strfind(Data{l},a);
empty=zeros(1,length(Data{l}))';
j=0;
    for k = 1:length(Data{l})
        ind = find(s{k});
        if ind==1;
    empty(k)=j+1;
        end
    end
    metar = find(empty);
    Nydata = Data{l};
    flygplatsmetar{l} = Nydata(metar);
end

[Linus Dock]

Thanks a lot!

[elias GR]

The commend is 'cell', not 'cells'...

Answer 2

[elias GR]

flygplatsmetar = cell(1,length(Data)); %initialize your 1D cell array
for l = 1:length(Data)
   ...
   flygplatsmetar{l} = Nydata(metar); %store the data
end

[Linus Dock]

Hi! I have Another question: How can I merge these cells from

<1x6 cell>

into one long cell. I can't get it to work iteratively inside the for loop. The manual code I'm trying to replicate is:

flygplatsmetar=[Utcell{1};Utcell{2};Utcell{3}]

Here Utcell is my Output from the for-loop instead and flygplatsmetar is the long cell I'm trying to constuct. Thank you for your reply!