Matlab：具有ksdensity的图以具有伪3D外观

Question

I would like to make a histogram plot using ksdensity in 3D. My plot looks similar to the example here;

http://www.mathworks.com/help/stats/fit-kernel-distributions-to-grouped-data-using-ksdensity.html

In my example I have 15 different histograms, and this plot in 2D is very congested. I am trying to space them out along a 3rd axis so they can be observed better.

Answer 1

This is the explicit solution of your problem:

figure(1)
hold on; grid on
for i = 1:15
    path = ['tmp_',num2str(i),'.out'];
    fid = fopen(path, 'r');
    a = textscan(fid,'%f');

    % Appearantly the first line is a string in some of your files
    % This if statement will take care of it ;)
    if isempty(a{1})
        fgetl(fid);
        a = textscan(fid,'%f');
    end
    tmp = a{1};
    % Some of your files (all but one I think) contain element numbering
    % This if statement takes care of it ;)
    if length(tmp) > 180000
        tmp = tmp(2:2:end);
    end
    fclose(fid);
    [f, xi] = ksdensity(tmp);
    plot3(xi, ones(length(f))*i, f)
end
view(3)