Count occurrences of dates in an excel file
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Hi,
The attached excel file contains a list of dates. I need help counting the number of occurrences for each date then sum them for each week. Where the week is counted from Sun - Sat.
For example, for the week of 5/1/15 John placed 21 orders.
Thanks
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Andrei Bobrov
am 23 Aug. 2016
Bearbeitet: Andrei Bobrov
am 23 Aug. 2016
[~,~,dc] = xlsread('Orders.xlsx'); % T = readtable('Orders.xlsx');
z = dc(2:end,:); % z = table2cell(T);
t = cellfun(@ischar,z); % t = ~cellfun(@isempty,z);
nd = weekday(datenum(z(t),'dd.mm.yy'));
ds = datenum(z(t),'dd.mm.yy');
ddf = diff([nd ds]);
lo = [true;ddf(:,1) < 0 | abs(ddf(:,2)) > 7];
i0 = double(t);
i0(t) = lo;
i1 = cumsum(i0).*t + 1;
i2 = ones(size(i1,1),1) * (1:3);
out = accumarray([i1(:),i2(:)],1);
out = out(2:end,:);
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KSSV
am 23 Aug. 2016
[num,txt,raw] = xlsread('Orders.xlsx') ;
dates = txt(:,1) ;
d = {'30-06-2016'} ;
% d = {'05-01-2015'} ;
idx = strcmp(dates,d) ;
count = length(find(idx==1));
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Peter Perkins
am 23 Aug. 2016
Your question is not quite clear to me, but you may find that converting your dates to datetime and using the week function is the way to go. Hope this helps.
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