Plotting Multiple Box plot in same graph same x axis

Question

Tesla 2022-2-25

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https://ww2.mathworks.cn/matlabcentral/answers/1658515-plotting-multiple-box-plot-in-same-graph-same-x-axis

评论： Voss 2022-2-27

采纳的回答： Voss

I have a data for 5 samples, and for 3 months.

I want to plot 5 box plots for every months. Which means in X-axis I will have January, Mars and April (3 values).

And I want to plot the 5 boxes plot in each month (different color ofc).

I search in the web and unfortunaly I didn't find any case like this, I don't know if it's possible to plot something like that.

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Answer 1

Voss 2022-2-25

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https://ww2.mathworks.cn/matlabcentral/answers/1658515-plotting-multiple-box-plot-in-same-graph-same-x-axis#answer_904540

在 MATLAB Online 中打开

Maybe something like this?

colors = 'rgbym';

for ii = 1:5

x1 = rand(5,1);

x2 = rand(10,1);

x3 = rand(15,1);

x = ii+[x1; x2; x3];

g1 = repmat({'January'},5,1);

g2 = repmat({'Mars'},10,1);

g3 = repmat({'April'},15,1);

g = [g1; g2; g3];

boxplot(x,g,'BoxStyle','filled','Color',colors(ii));

hold on

end

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Tesla 2022-2-27

在 MATLAB Online 中打开

I got this error

Error in untitled2 (line 30)

b = boxplot(x,g,'BoxStyle','filled','Color','k');

This is the new Code:

data1 = [1.0735];
data2 = [1.0873];
data3 = [1.1093];
data4 = [1.0927];
data5 = [1.1049];
data11 = [1.0735 1];
data22 = [1.0873 0.4];
data33 = [1.1093 0.4];
data44 = [1.0927 0.45];
data55 = [1.1049 0.75];
data111 = [1.0735 1 0.4 0.1];
data222 = [1.0873 0.4 0.45 0.5];
data333 = [1.1093 0.4 0.48 0.99];
data444 = [1.0927 0.45 0.77 0.66];
data555 = [1.1049 0.75 0.11 0.77];
colors = 'rgbym';
for ii = 1:5
    
    x = [data1(:); data2(:); data3(:); data11(:); data22(:); data33(:);data111(:); data222(:); data333(:)];
    
    g1 = repmat({'January'},numel(data1),1);
    g2 = repmat({'March'},numel(data2),1);
    g3 = repmat({'April'},numel(data3),1);
    g = [g1; g2; g3];
    
    b = boxplot(x,g,'BoxStyle','filled','Color','k');
    set(b(2,:),'Color',colors(ii));
    
    [m,n] = size(b);
    for jj = 1:m
        for kk = 1:n
            set(b(jj,kk),'XData',get(b(jj,kk),'XData')+(ii-3)*0.1);
        end
    end
    hold on
    
end

Voss 2022-2-27

编辑：Voss 2022-2-27

在 MATLAB Online 中打开

That error is because you put new stuff in x but didn't also put corresponding new stuff in g.

Maybe try it like this (but maybe the data for March (which is what I'm assuming 11, 22, etc., mean) should not include the data for January? and likewise April (111, 222, ...) should not include January and March?):

data1 = [1.0735];

data2 = [1.0873];

data3 = [1.1093];

data4 = [1.0927];

data5 = [1.1049];

data11 = [1.0735 1];

data22 = [1.0873 0.4];

data33 = [1.1093 0.4];

data44 = [1.0927 0.45];

data55 = [1.1049 0.75];

data111 = [1.0735 1 0.4 0.1];

data222 = [1.0873 0.4 0.45 0.5];

data333 = [1.1093 0.4 0.48 0.99];

data444 = [1.0927 0.45 0.77 0.66];

data555 = [1.1049 0.75 0.11 0.77];

all_data = { ...

data1 data2 data3 data4 data5; ...

data11 data22 data33 data44 data55; ...

data111 data222 data333 data444 data555; ...

}

all_data = 3×5 cell array

{[ 1.0735]} {[ 1.0873]} {[ 1.1093]} {[ 1.0927]} {[ 1.1049]} {[ 1.0735 1]} {[ 1.0873 0.4000]} {[ 1.1093 0.4000]} {[ 1.0927 0.4500]} {[ 1.1049 0.7500]} {[1.0735 1 0.4000 0.1000]} {[1.0873 0.4000 0.4500 0.5000]} {[1.1093 0.4000 0.4800 0.9900]} {[1.0927 0.4500 0.7700 0.6600]} {[1.1049 0.7500 0.1100 0.7700]}

n_data = cellfun(@numel,all_data)

n_data = 3×5

1 1 1 1 1 2 2 2 2 2 4 4 4 4 4

colors = 'rgbym';

for ii = 1:5

x = [all_data{:,ii}];

g1 = repmat({'January'},n_data(1,ii),1);

g2 = repmat({'March'},n_data(2,ii),1);

g3 = repmat({'April'},n_data(3,ii),1);

g = [g1; g2; g3];

b = boxplot(x,g,'BoxStyle','filled','Color','k');

set(b(2,:),'Color',colors(ii));

[m,n] = size(b);

for jj = 1:m

for kk = 1:n

set(b(jj,kk),'XData',get(b(jj,kk),'XData')+(ii-3)*0.1);

end

hold on

end

Voss 2022-2-27

编辑：Voss 2022-2-27

在 MATLAB Online 中打开

As far as I can tell, there are only two options for 'BoxStyle': 'outline' and 'filled'. Here's what 'outline' would look like in this case:

data1 = [1.0735];

data2 = [1.0873];

data3 = [1.1093];

data4 = [1.0927];

data5 = [1.1049];

data11 = [1.0735 1];

data22 = [1.0873 0.4];

data33 = [1.1093 0.4];

data44 = [1.0927 0.45];

data55 = [1.1049 0.75];

data111 = [1.0735 1 0.4 0.1];

data222 = [1.0873 0.4 0.45 0.5];

data333 = [1.1093 0.4 0.48 0.99];

data444 = [1.0927 0.45 0.77 0.66];

data555 = [1.1049 0.75 0.11 0.77];

all_data = { ...

data1 data2 data3 data4 data5; ...

data11 data22 data33 data44 data55; ...

data111 data222 data333 data444 data555; ...

};

n_data = cellfun(@numel,all_data);

colors = 'rgbym';

for ii = 1:5

x = [all_data{:,ii}];

g1 = repmat({'January'},n_data(1,ii),1);

g2 = repmat({'March'},n_data(2,ii),1);

g3 = repmat({'April'},n_data(3,ii),1);

g = [g1; g2; g3];

b = boxplot(x,g,'BoxStyle','outline','Color',colors(ii));

[m,n] = size(b);

for jj = 1:m

for kk = 1:n

set(b(jj,kk),'XData',get(b(jj,kk),'XData')+(ii-3)*0.1);

end

hold on

end

But you can "manually" adjust the width of the bars after they are ceated in boxplot() (EDIT: this also has the few lines of code for creating the legend):

figure()

h_legend = [];

for ii = 1:5

x = [all_data{:,ii}];

g1 = repmat({'January'},n_data(1,ii),1);

g2 = repmat({'March'},n_data(2,ii),1);

g3 = repmat({'April'},n_data(3,ii),1);

g = [g1; g2; g3];

b = boxplot(x,g,'BoxStyle','outline','Color',colors(ii));

h_legend(ii) = b(3,1);

[m,n] = size(b);

for kk = 1:n

% set the width of the bars to 0.12 times the default

for jj = 3:6

set(b(jj,kk),'XData',(get(b(jj,kk),'XData')-kk)*0.12+kk);

end

% shift the boxplots according to the data series (ii)

for jj = 1:m

set(b(jj,kk),'XData',get(b(jj,kk),'XData')+(ii-3)*0.1);

end

hold on

end

legend(h_legend,{'1' '2' '3' '4' '5'})

Tesla 2022-2-27

Sure you can have a free Y model ))

Voss 2022-2-27

Excellent!

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Answer 2

Rik 2022-2-25

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链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1658515-plotting-multiple-box-plot-in-same-graph-same-x-axis#answer_904520

编辑：Rik 2022-2-25

在 MATLAB Online 中打开

You can group them in bins from 1 to 15 and tweak the x labels to match your needs.

See the documentation for how to use 'GroupByColor'.

data=cell(5,3);

for n=1:numel(data)

data{n}=randi(n)*randn(100,1);

end

grouping=cell(size(data));

for n=1:numel(data)

grouping{n}=n*ones(size(data{n}));

end

grouping=[grouping{:}];

data=[data{:}];

boxchart(grouping(:),data(:))

xticks(2.5:5:12.5)

xticklabels({'January','March','April'})

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Tesla 2022-2-26

Thank you a lot,

And how to put my data?

Because the arrays of my data have not the same dimensions.

For example data1 is [0.5 0.78], data2 [0.4 0.6 0.12] data3 [0.9 0.4 0.47]...

Rik 2022-2-26

The point is that each variable should be a vector. The best syntax to ensure that depends on your exact data.

Also, if this answer solved the problem, please consider marking it as accepted answer.

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Plotting Multiple Box plot in same graph same x axis

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Plotting Multiple Box plot in same graph same x axis

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