MATLAB: How to group rows by date

group datasort by date

i have this data
i want to group\sort them to be something like this:
how i can do this ?

Best Answer

[~,~,z] = xlsread('20150523.xlsx');
c = z(cellfun('isempty',regexp(z,'\')));
[y,~] = datevec(c);
[~,~,c0] = unique(y);
c1 = accumarray(c0,(1:numel(c0))',[],@(ii){c(ii)});
c2 = [c1,repmat({{[]}},size(c1))]';
out = cat(1,c2{1:end-1});
xlswrite('20150523.xlsx',out,1,'B1')
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