Histogram wrong Classes help

Hi,

I need help representing data with the histogram function.

figure()
for i = 1:8
    subplot(4,2,i), histogram(Data.score)
    xlabel('score'), ylabel('Occurrences');
    hold on
end

Thank you!

Answer 1

[Voss]

% random integers between 0 and 4; 100 rows by 8 columns
data = randi(5,100,8)-1;
% replace the zeros in columns 1 and 3 with 1's to replicate your situation:
data(data(:,1) == 0,1) = 1;
data(data(:,3) == 0,3) = 1;

% the problem: no bin for 0 when there are no 0's:
figure();
for i = 1:8
    subplot(4,2,i);
    histogram(data(:,i));
end

% the solution: forcing histogram to include a spot for 0 when there are no
% 0's, by specifying the histogram edges:
figure();
for i = 1:8
    subplot(4,2,i);
    histogram(data(:,i),(0:5)-0.5);
end

[Nina Perf]

Thank you for your explaination!

It works, however, in the x axis the labels are not centered with the bins. How can I do a graph bar with the x labels?

[Voss]

I edited the answer shortly after posting, to get the bins centered properly. Are you referring to the latest version? They look centered ok to me.