How to add numerical value in the stacked bar chart

Question

Shariful Islam 2022-7-7

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1755450-how-to-add-numerical-value-in-the-stacked-bar-chart

评论： Shariful Islam 2022-7-11

Dear Altruist,

Here is my code. I want to add percentage vaule in the bar, like 50, 45, 5. I have attached a image. Now, how can I update my current code for this?

Regards,

Shariful

subplot(4,1,1)

y1 = [50 45 5; 36 64 0; 47 23 30; 0 52 48; 26 74 0];

x1 = [1,2,3,4,5];

bar(x1, y1,'stacked')

ylabel('Percentage')

% applyhatch(gcf,'x-+.')

subplot(4,1,2)

x2 = [6,7,8,9,10]

x2 = 1×5

6 7 8 9 10

y2 = [50 45 5; 36 64 0; 47 23 30; 0 52 48; 26 74 0];

bar(x2, y2,'stacked')

ylabel('Percentage')

% applyhatch(gcf,'x-+.')

subplot(4,1,3)

x3 = [11,12,13,14,15]

x3 = 1×5

11 12 13 14 15

y3 = [50 45 5; 36 64 0; 54 0 46; 0 52 48; 26 74 0];

bar(x3, y3,'stacked')

ylabel('Percentage')

% applyhatch(gcf,'x-+.')

subplot(4,1,4)

x4 = [16,17,18,19,20]

x4 = 1×5

16 17 18 19 20

y4 = [50 45 5; 36 64 0; 47 23 30; 0 52 48; 26 74 0];

bar(x4, y4,'stacked')

ylabel('Percentage')

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Answer 1

Adam Danz 2022-7-7

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链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1755450-how-to-add-numerical-value-in-the-stacked-bar-chart#answer_1002535

编辑：Adam Danz 2022-7-7

在 MATLAB Online 中打开

Follow this example that uses XEndPoints and YEndPoints bar properties to compute the center of each stacked bar. The text shows the percentage of the segment within the stack.

In this example bar(x,y,'stacked'), x is a 1x5 vector and y is an nx5 matrix which will produce 5 stacks of n segments.

Update I just noticed you're using MATLAB R2015a. These bar properties were not available until later. Additionally, my example uses implicit expansion and a syntax of bar3 that was not available in 15a. If you can update MATLAB that would be best (for lots of reasons). Otherwise, you can compute the vertical centers of the bars using

ybarCnt = cumsum(y')-y'/2;

x = 1:5;

rng('default') % for reproducibility

y = rand(4,5) * 10;

h = bar(x, y,'stacked');

% Compute percentage

yp = y./sum(y) * 100;

% Compute bar segment centers

xbarCnt = vertcat(h.XEndPoints);

ybarTop = vertcat(h.YEndPoints);

ybarCnt = ybarTop - y/2;

% Create text strings

txt = compose('%.1f%%',yp);

% Add text

th = text(xbarCnt(:), ybarCnt(:), txt(:), ...

'HorizontalAlignment', 'center', ....

'VerticalAlignment', 'middle', ...

'Color', 'w',....

'FontSize', 8);

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Shariful Islam 2022-7-7

在 MATLAB Online 中打开

Thanks @Adam Danz.

I am using MATLAB R2015a, when I am trying to run your code, it shows an error in line 4, "The length of X must match the number of rows of Y".

and I am updating my code as follows:

subplot(4,1,1)

y1 = [50 45 5; 36 64 0; 47 23 30; 0 52 48; 26 74 0];

x1 = 1:5;

bar(x1, y1,'stacked')

yp1 = y1./sum(y1) * 100;

xbarCnt = vertcat(h.XEndPoints);

Unable to resolve the name 'h.XEndPoints'.

ybarTop = vertcat(h.YEndPoints);

ybarCnt = ybarTop - y1/2;

txt = compose('%.0f%%',yp1);

th = text(xbarCnt(:), ybarCnt(:), txt(:), ...

'HorizontalAlignment', 'center', ....

'VerticalAlignment', 'middle', ...

'Color', 'w',....

'FontSize', 8);

ylabel('Percentage')

subplot(4,1,2)

x2 = 6:10;

y2 = [50 45 5; 36 64 0; 47 23 30; 0 52 48; 26 74 0];

bar(x2, y2,'stacked')

yp2 = y2./sum(y2) * 100;

xbarCnt = vertcat(h.XEndPoints);

ybarTop = vertcat(h.YEndPoints);

ybarCnt = ybarTop - y2/2;

txt = compose('%.0f%%',yp2);

th = text(xbarCnt(:), ybarCnt(:), txt(:), ...

'HorizontalAlignment', 'center', ....

'VerticalAlignment', 'middle', ...

'Color', 'w',....

'FontSize', 8);

ylabel('Percentage')

subplot(4,1,3)

x3 = 11:15;

y3 = [50 45 5; 36 64 0; 47 23 30; 0 52 48; 26 74 0];

bar(x3, y3,'stacked')

yp3 = y3./sum(y3) * 100;

xbarCnt = vertcat(h.XEndPoints);

ybarTop = vertcat(h.YEndPoints);

ybarCnt = ybarTop - y3/2;

txt = compose('%.0f%%',yp3);

th = text(xbarCnt(:), ybarCnt(:), txt(:), ...

'HorizontalAlignment', 'center', ....

'VerticalAlignment', 'middle', ...

'Color', 'w',....

'FontSize', 8);

ylabel('Percentage')

subplot(4,1,4)

x4 = 16:20;

y4 = [50 45 5; 36 64 0; 47 23 30; 0 52 48; 26 74 0];

bar(x4, y4,'stacked')

yp4 = y4./sum(y4) * 100;

xbarCnt = vertcat(h.XEndPoints);

ybarTop = vertcat(h.YEndPoints);

ybarCnt = ybarTop - y4/2;

txt = compose('%.0f%%',yp4);

th = text(xbarCnt(:), ybarCnt(:), txt(:), ...

'HorizontalAlignment', 'center', ....

'VerticalAlignment', 'middle', ...

'Color', 'w',....

'FontSize', 8);

ylabel('Percentage')

Shariful Islam 2022-7-7

在 MATLAB Online 中打开

Thanks @Adam Danz. But in this section it is MATLAB R2022a. But here is also showing some error! What can I do?

subplot(4,1,1)

y1 = [50 45 5; 36 64 0; 47 23 30; 0 52 48; 26 74 0];

x1 = 1:5;

bar( y1,'stacked')

yp1 = y1./sum(y1) * 100;

xbarCnt = vertcat(h.XEndPoints);

Unable to resolve the name 'h.XEndPoints'.

ybarTop = vertcat(h.YEndPoints);

ybarCnt = ybarTop - y1/2;

txt = compose('%.1f%%',yp1);

th = text(xbarCnt(:), ybarCnt(:), txt(:), ...

'HorizontalAlignment', 'center', ....

'VerticalAlignment', 'middle', ...

'Color', 'w',....

'FontSize', 8);

ylabel('Percentage')

subplot(4,1,2)

x2 = 6:10;

y2 = [50 45 5; 36 64 0; 47 23 30; 0 52 48; 26 74 0];

bar(y2,'stacked')

yp2 = y2./sum(y2) * 100;

xbarCnt = vertcat(h.XEndPoints);

ybarTop = vertcat(h.YEndPoints);

ybarCnt = ybarTop - y2/2;

txt = compose('%.1f%%',yp2);

th = text(xbarCnt(:), ybarCnt(:), txt(:), ...

'HorizontalAlignment', 'center', ....

'VerticalAlignment', 'middle', ...

'Color', 'w',....

'FontSize', 8);

ylabel('Percentage')

subplot(4,1,3)

x3 = 11:15;

y3 = [50 45 5; 36 64 0; 47 23 30; 0 52 48; 26 74 0];

bar(y3,'stacked')

yp3 = y3./sum(y3) * 100;

xbarCnt = vertcat(h.XEndPoints);

ybarTop = vertcat(h.YEndPoints);

ybarCnt = ybarTop - y3/2;

txt = compose('%.1f%%',yp3);

th = text(xbarCnt(:), ybarCnt(:), txt(:), ...

'HorizontalAlignment', 'center', ....

'VerticalAlignment', 'middle', ...

'Color', 'w',....

'FontSize', 8);

ylabel('Percentage')

subplot(4,1,4)

x4 = 16:20;

y4 = [50 45 5; 36 64 0; 47 23 30; 0 52 48; 26 74 0];

bar(y4,'stacked')

yp4 = y4./sum(y4) * 100;

xbarCnt = vertcat(h.XEndPoints);

ybarTop = vertcat(h.YEndPoints);

ybarCnt = ybarTop - y4/2;

txt = compose('%.1f%%',yp4);

th = text(xbarCnt(:), ybarCnt(:), txt(:), ...

'HorizontalAlignment', 'center', ....

'VerticalAlignment', 'middle', ...

'Color', 'w',....

'FontSize', 8);

ylabel('Percentage')

Shariful Islam 2022-7-9

在 MATLAB Online 中打开

Dear @Adam Danz, I am sorry. I have updated my MATLAB and run the following code:

subplot(4,1,1)

y1 = [50 45 5; 36 64 0; 47 23 30; 0 52 48; 26 74 0];

x1 = 1:5;

bar(x1, y1,'stacked')

yp1 = y1./sum(y1) * 100;

% Compute bar segment centers

xbarCnt1 = vertcat(h.XEndPoints);

Unable to resolve the name 'h.XEndPoints'.

ybarTop1 = vertcat(h.YEndPoints);

ybarCnt1 = ybarTop - y1/2;

% Create text strings

txt1 = compose('%.1f%%',yp1);

% Add text

th1 = text(xbarCnt1(:), ybarCnt1(:), txt1(:), ...

'HorizontalAlignment', 'center', ....

'VerticalAlignment', 'middle', ...

'Color', 'w',....

'FontSize', 8);

ylabel('Percentage')

subplot(4,1,2)

x2 = 6:10;

y2 = [50 45 5; 36 64 0; 47 23 30; 0 52 48; 26 74 0];

bar(x2, y2,'stacked')

yp2 = y2./sum(y2) * 100;

xbarCnt2 = vertcat(h.XEndPoints);

ybarTop2 = vertcat(h.YEndPoints);

ybarCnt2 = ybarTop - y2/2;

txt2 = compose('%.1f%%',yp2);

th2 = text(xbarCnt2(:), ybarCnt2(:), txt2(:), ...

'HorizontalAlignment', 'center', ....

'VerticalAlignment', 'middle', ...

'Color', 'w',....

'FontSize', 8);

ylabel('Percentage')

subplot(4,1,3)

x3 = 11:15;

y3 = [50 45 5; 36 64 0; 47 23 30; 0 52 48; 26 74 0];

bar(x3, y3,'stacked')

yp3 = y3./sum(y3) * 100;

xbarCnt3 = vertcat(h.XEndPoints);

ybarTop3 = vertcat(h.YEndPoints);

ybarCnt3 = ybarTop - y3/2;

txt3 = compose('%.1f%%',yp3);

th3 = text(xbarCnt3(:), ybarCnt3(:), txt3(:), ...

'HorizontalAlignment', 'center', ....

'VerticalAlignment', 'middle', ...

'Color', 'w',....

'FontSize', 8);

ylabel('Percentage')

subplot(4,1,4)

x4 = 16:20;

y4 = [50 45 5; 36 64 0; 47 23 30; 0 52 48; 26 74 0];

bar(x4, y4,'stacked')

yp4 = y4./sum(y4) * 100;

xbarCnt4 = vertcat(h.XEndPoints);

ybarTop4 = vertcat(h.YEndPoints);

ybarCnt4 = ybarTop - y4/2;

txt4 = compose('%.1f%%',yp4);

th4 = text(xbarCnt4(:), ybarCnt4(:), txt4(:), ...

'HorizontalAlignment', 'center', ....

'VerticalAlignment', 'middle', ...

'Color', 'w',....

'FontSize', 8);

ylabel('Percentage')

Adam Danz 2022-7-11

> how can I remove the text from bar graph"0.0%"?

Using the variable names from my answer, after creating the txt array, add this line to replace "0%" with empty character vectors.

txt(yp==0) = {''};

About the hatched fill function the File Exchange, sorry, I'm not familiar with that submission. You may want to ask the author or search for that function in the forum to see if other users asked about this and found a solution.

Shariful Islam 2022-7-11

@Adam Danz, Thanks a lot! :D

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