boxplot

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Espinola - 2022-04-04T11:04:47+00:00
Question: boxplot

I have a matrix of occurences (7 rows(countries),46 columns(number of shoes)), n - number of occurences - for example in "a" I have n1=450, single pair of shoes...   1 2 3 .... 46 a n1 n2 n3 .... n46 b . . . g I would like to produce 7 boxplots representing the distribution in each category a-g. Normally I would have 450 times 1, n2 times 2 etc... is there a simple way to do it? Does anybody have a suggestion for a nicer representation than the boxplot?

Expert Answer

Profile picture of Neeta Dsouza Neeta Dsouza answered . 2025-11-20

This may partially answer what you want. Step 1 would be to take the data for "a" and stretch it out as you describe. Here's one way to expand a data vector according to a vector of frequencies:

 

f = [4 3 0 1 2];    % frequencies
d = [1 2 3 4 5];    % data
c = [0, cumsum(f)]; % cumulative sum of frequencies
x = zeros(1,c(end));
for j=1:length(c)-1
   x(c(j)+1:c(j+1)) = d(j); % insert each value as required
end

 


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