How to align XTicks with boxplots, code and the output is attached ?

Question

Avijit Paul 2023-4-29

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链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1955134-how-to-align-xticks-with-boxplots-code-and-the-output-is-attached

编辑： Cris LaPierre 2023-4-30

rmse1=[rmse_wavelet_anfis_his;rmse_wavelet_anfis;rmse_QDM_his;rmse_QDM;...
    rmse_QM_his;rmse_QM;rmse_raw_his;rmse_raw];
mae1=[mae_wavelet_anfis_his;mae_wavelet_anfis;mae_QDM_his;mae_QDM;...
    mae_QM_his;mae_QM;mae_raw_his;mae_raw];
g = ones(size(rmse_raw));
g = [g;g*2;g*3;g*4;g*5;g*6;g*7;g*8];
g=categorical(g);
p= tiledlayout(1,2,'TileSpacing','none');
ax1 = nexttile;
b1= boxchart(ax1,g,rmse1,'GroupByColor',g,'BoxWidth',3);
ax2=nexttile;
b2= boxchart(ax2,g,mae1,'GroupByColor',g,'BoxWidth',3);
for i=1:8
    remaind=rem(i,2);
    if remaind==1
        b1(i).SeriesIndex=1;
        b2(i).SeriesIndex=1;
    else
        b1(i).SeriesIndex=2;
        b2(i).SeriesIndex=2; 
    end
end

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Answer 1

Cris LaPierre 2023-4-29

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链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1955134-how-to-align-xticks-with-boxplots-code-and-the-output-is-attached#answer_1225889

编辑：Cris LaPierre 2023-4-30

See this answer: https://www.mathworks.com/matlabcentral/answers/1949893-how-to-avoid-horizontal-shifts-after-applying-groupbycolor-on-boxcharts?s_tid=srchtitle

When you group by color, boxchart expects there to be a boxplot for each group at each tick. It therefore makes space for that, centering the grouped boxplots around each tick.

If you want to set the color for each boxchart and have it aligned with an xtick, you must plot each boxplot individually, as Adam Danz shows in the linked answer.

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Avijit Paul 2023-4-30

Thanks a lot. Matlab can update the boxchart function, for this scenario that, whenever there is one boxchart for one xtick, it can automatically allign with the xticks.

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