How to plot histogram using given data ?

Question

Safia 2023-2-23

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1917915-how-to-plot-histogram-using-given-data

评论： Voss 2023-2-24

采纳的回答： Voss

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Hello!

I'm asking if it is possible to insert data in matlab and use them to plot histogram with different colors?

i have already used excel but i need a different form of histogram (bar forms), for example the first bar contains circles, the second contains squares,...

here is my data

Value 	first	  Second	third
   0,67	0,66	0,70
   0,38	0,37	0,42
   0,26	0,25	0,30
   0,19	0,19    0,24
   0,15	0,15	0,21

i need to see "first", "second" and "third" as function of value

Thanks in advance

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Adam Danz 2023-2-23

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> is it possible to insert data in matlab and use them to plot histogram with different colors?

Yes, one set of bars will be generated for each column of data, each with a different color.

data = randn(1000,3)+[-2 2 5];

hold on

histogram(data(:,1))

histogram(data(:,2))

histogram(data(:,3))

> i need a different form of histogram (bar forms)... the first bar contains circles, the second contains squares

Not sure what this means, please elaborate or show us an image.

Safia 2023-2-24

@Adam Danz hello!

this is what i get with excel ,how to plot this in matlab?

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Answer 1

Voss 2023-2-24

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1917915-how-to-plot-histogram-using-given-data#answer_1179420

在 MATLAB Online 中打开

% Value first Second third

M = [ ...

10 0.67 0.66 0.70; ...

20 0.38 0.37 0.42; ...

30 0.26 0.25 0.30; ...

40 0.19 0.19 0.24; ...

50 0.15 0.15 0.21; ...

];

bar(M(:,1),M(:,2:end))

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Safia 2023-2-24

@Voss thank you very much.

It is possible to modify its form like this

Voss 2023-2-24

Look into the hatchfill2 function on the File Exchange in the link shared by VBBV.

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Answer 2

VBBV 2023-2-23

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1917915-how-to-plot-histogram-using-given-data#answer_1178855

Check the answer from the below link

https://in.mathworks.com/matlabcentral/answers/1670649-bar-plot-with-a-hatched-fill-pattern?s_tid=srchtitle

May be its hatch property of the bar which should be used. It seems this is not default Matlab property for bar & histogram functions. You need to use the below custom function available from File Exchange.

https://in.mathworks.com/matlabcentral/fileexchange/53593-hatchfill2