Stacked bar chart and writing value inside each bar and a value in top of the bar

Question

Bimal Ghimire 2020-9-1

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/587501-stacked-bar-chart-and-writing-value-inside-each-bar-and-a-value-in-top-of-the-bar

评论： Bimal Ghimire 2020-9-7

采纳的回答： dpb

Here, I want to show each y value inside the resepective stacked bar without adding cumulatively..To show the

value properly (As some values are really large and some are small) , I multiplied and devided value accordingly. Still

values are not shown properly. Width of the bar is not sufficient to show the value also. Additionally,

I want to show E{i} on top of each stacked bar. Moreover, for a particular value of i=index, I want to display bar with differnt color.

I am new to matlab. I could not do all. I would really appreciate your response.

for i=1:20
    A{i}=randi([100,1000]);
    B{i}=randi([100,300]);
    C{i}=randi([2,30]);
    D{i}=randi([2,30]);
    E{i}=randi([0,2]);
end
hold on;
index=10;
for i=1:20
    y=[A{i}/5,B{i}/5,C{i}*5,D{i}*5];
    bh = bar(i,y,'stacked','FaceColor', 'Flat');  
    
    % Choose a color map (using "lines" in this example)
    if i~=index
         colors =  mat2cell(lines(numel(bh)),ones(numel(bh),1), 3);
        set(bh, {'CData'}, colors) 
    else
       colors =  mat2cell(jet(numel(bh)),ones(numel(bh),1), 3); 
        set(bh, {'CData'}, colors) 
    end
    % Compute the height of each segment and write text to plot
    text(repmat(i,1,numel(bh)), y, compose('%.1f',y), 'Color', 'w', ...
        'FontSize', 8, 'HorizontalAlignment', 'Center', 'VerticalAlignment', 'Top')
end

4 个评论
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Bimal Ghimire 2020-9-2

Thank you so much.

Bimal Ghimire 2020-9-3

https://www.mathworks.com/matlabcentral/answers/587501-stacked-bar-chart-and-writing-value-inside-each-bar-and-a-value-in-top-of-the-bar#comment_993497

for i=1:20
    A{i}=randi([100,1000]);
    B{i}=randi([100,300]);
    C{i}=randi([2,30]);
    D{i}=randi([2,30]);
    E{i}=randi([0,2]);
end
hold on;
index=10;
numNearbyCHs=20
for i=1:numNearbyCHs
    y=[A{i}/5,B{i}/5,C{i}*5,D{i}*5];
    bh = bar(i,y,'stacked','FaceColor', 'Flat');  
    
    % Choose a color map (using "lines" in this example)
    if i~=index
         colors =  mat2cell(lines(numel(bh)),ones(numel(bh),1), 3);
        set(bh, {'CData'}, colors) 
    else
       colors =  mat2cell(jet(numel(bh)),ones(numel(bh),1), 3); 
        set(bh, {'CData'}, colors) 
    end
    
    arrayfun(@(i) text(bh(i).XEndPoints,bh(i).YEndPoints,num2str(bh(i).YEndPoints.','%0.1f'), ...
               'verticalalignment','top','horizontalalign','center'),[1:numel(bh)])
    
         
           
              
end

I followed your statements but why bar garph is not showing every value of i. Apart from that, value of array E is not part

of the graph but I want to show on top of the stacked bar. How it can be done? Is there a way to adjust bar width according to the content?

Thank you once again for the earlier reply.

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Answer 1

dpb 2020-9-3

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链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/587501-stacked-bar-chart-and-writing-value-inside-each-bar-and-a-value-in-top-of-the-bar#answer_489367

编辑：dpb 2020-9-4

numNearbyCHs=20;
A=randi([100,1000],numNearbyCHs,1);
B=randi([100,300],numNearbyCHs,1);
C=randi([2,30],numNearbyCHs,1);
D=randi([2,30],numNearbyCHs,1);
E=randi([0,2],numNearbyCHs,1);
y=[A B C D].*[1/5 1/5 5 5];
hBar=bar(y,0.95,'stacked');  
arrayfun(@(i) text(hBar(i).XEndPoints,hBar(i).YEndPoints,num2str(hBar(i).YEndPoints.','%0.1f'), ...
               'verticalalignment','top','horizontalalign','center','fontsize',6,'color','w'), ...
               [1:numel(hBar)])
text(hBar(end).XEndPoints,hBar(end).YEndPoints,num2str(E,'%0.1f'), ...
'verticalalignment','bottom','horizontalalign','center','fontsize',6,'color','k')
xlim([0.25 20.75]), ylim([0 460])

results in

I'll let you go fix up the colors as wanted; with the default figure size even widening the barwidth to 0.95, minimizing the whitespace on the x axis and going to 6-pt font barely gets the text in the bar. Looks like could have raised ylim a little more, too.

But, the basic code to to do what asked for..."salt to suit!" :)

3 个评论
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dpb 2020-9-6

编辑：dpb 2020-9-6

Glad to help...have messed with bar a LOT over the years in forum to find workarounds -- it's much simpler now to do this since TMW finally exposed the needed properties/values. I'd like to think my ranting here about the poor user interface and missing feautres had some positive impact in getting that enhancement done! :)

Bimal Ghimire 2020-9-7