Bar Plot of 2-D Array - How to label each individual bar with the value on top?

Question

Robert 2013-10-28

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/104162-bar-plot-of-2-d-array-how-to-label-each-individual-bar-with-the-value-on-top

编辑： Image Analyst 2013-10-29

So I've managed to get the value to show on the plot, but it is only over the middle plot. I would like to get the values to show up over their respective bars. I think I need to get the x-coordinates for each bar but am not quite sure about how to do that. Any help would be much appreciated. Here's my code:

x=[1:3]';
y=round(rand(3,5)*10);
bar(x,y)
[size_x,size_y]=size(y);
for i1=1:size_x
    for j1=1:size_y
        text(x(i1),y(i1,j1),num2str(y(i1,j1),'%0.2f'),...
                'HorizontalAlignment','center',...
                'VerticalAlignment','bottom')
    end
end

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Robert 2013-10-29

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/104162-bar-plot-of-2-d-array-how-to-label-each-individual-bar-with-the-value-on-top#answer_113606

在 MATLAB Online 中打开

For anyone who might be looking to do the same thing, here's my solution. You just have to adjust the value of 'b' based on what your x-values are.

x=[1:3]';
y=round(rand(3,5)*10); 
bar(x,y)
[size_x,size_y]=size(y);
a=0;
b=0;
for i1=1:size_x
    for j1=1:size_y
        a=a+1;
        if a==1
            b=-0.3;
        end
        if a==2
            b=-0.15;
        end
        if a==3
            b=0;
        end
        if a==4
            b=0.15;
        end
        if a==5
            b=0.3;
        end
        text((x(i1)+b),y(i1,j1),num2str(y(i1,j1),'%0.1f'),...
                'HorizontalAlignment','center',...
                'VerticalAlignment','bottom')
        if a==5
            a=0;
        end
    end
end

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

Answer 2

sixwwwwww 2013-10-28

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/104162-bar-plot-of-2-d-array-how-to-label-each-individual-bar-with-the-value-on-top#answer_113513

在 MATLAB Online 中打开

Dear Robert, replace first two lines of your code as follows and you will get your desired bar plot:

x=[1:15]'; 
y=round(rand(15,1)*10);

I hope it helps. Good luck!

2 个评论
显示无隐藏无

Robert 2013-10-28

在 MATLAB Online 中打开

Hey, thanks for your help. So yes that would solve the issue of getting the values for each bar, but I need the bars grouped together. That is why I have the code set to

x=[1:3]';
y=round(rand(3,5)*10);

Is there any way to get the values on top and still have bars grouped together?

sixwwwwww 2013-10-28

在 MATLAB Online 中打开

I don't think so but maybe there could be a work around for this problem. You can also have a look at

hist

Maybe that is useful to you

请先登录，再进行评论。

Answer 3

Image Analyst 2013-10-29

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/104162-bar-plot-of-2-d-array-how-to-label-each-individual-bar-with-the-value-on-top#answer_113543

barchart.m

See my demo that does this, attached below.

2 个评论
显示无隐藏无

Robert 2013-10-29

编辑：Robert 2013-10-29

Hey so that's not quite what I was trying to do, but I used a portion of your code to come up with a solution. Thanks for your input though!

Image Analyst 2013-10-29

编辑：Image Analyst 2013-10-29

My intent was not to do exactly what you want to do but to show you, in a demo I already had on hand, how you could use text() to do what you wanted to do. You were supposed to modify my code or your code to use text() to do more exactly what you wanted, which it looks like you've done in the Answer you Accepted.

请先登录，再进行评论。