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How to sum according to specific ranges within same table?

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Harr on 30 Mar 2021
Commented: Harr on 1 Apr 2021
Available data: Please see the attached table.
Required: As shown in the same Excel file i would like to calculate the summ of test results for each person and based on four different intervals (1-10), (10-20), (20-30) and (30-40). then return a plot also for each person.
Any suggestions?

Accepted Answer

Pavan Guntha
Pavan Guntha on 1 Apr 2021
Hi Hedi,
You could load the excel file as a table. You could refer to this documentation page link for more details. The following code illustrates the further steps to calculate sum based on a condition:
c = categories(TestConditionalSum.AvailableData);
resCat = zeros(length(c),4);
for i = 1:length(c)
t = TestConditionalSum(TestConditionalSum.AvailableData == c{i},:);
for j = 1:size(t,1)
if(t(j,:).From >= 30)
resCat(i,4) = resCat(i,4) + t(j,:).Res; % Res is the name of T-Results column in the table
elseif(t(j,:).From >= 20)
resCat(i,3) = resCat(i,3) + t(j,:).Res;
elseif(t(j,:).From >= 10)
resCat(i,2) = resCat(i,2) + t(j,:).Res;
elseif(t(j,:).From >= 1)
resCat(i,1) = resCat(i,1) + t(j,:).Res;
b = barh(resCat(4,end:-1:1)); % Example plot for datapoint 'Maya'
The resCat matrix contains the required sum for the 4 respective intervals for each of the available datapoints. You could refer to the documentation of barh function for more details on plotting. The plot for the above code is as follows:
Hope this helps!
  1 Comment
Harr on 1 Apr 2021
Dear Pavan,
Thank you very mcuh for your reply and the link! Probelm solved ^_^

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