How to plot fixed value for a number of ranges splited by a fixed step size in MATLAB?

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Heya :) 2020-2-17

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评论： Heya :) 2020-2-29

采纳的回答： Giuseppe Inghilterra

How to plot the figure in the image given below?

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Answer 1

Giuseppe Inghilterra 2020-2-17

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Hi,

you can obtain your plot by using 'bar' matlab function (reference: https://www.mathworks.com/help/matlab/ref/bar.html).

For example if you run the following lines:

x = -1.5:0.1:1.5;
y = zeros(1,31);
y(10) = 0.8;
y(15) = 0.6;
bar(x,y,0)              

you obtain the following plot:

The 3rd input argument of bar function specify the width of each bar. In this case it is set to 0 in order to obtain your plot.

Then you can control label of x-axis and y-axis by using xlabel and ylabel function (example: xlabel('Coefficient value'), ylabel('Distribution') and set axes limits by using xlim, ylim functions.

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Giuseppe Inghilterra 2020-2-18

y(10) is just an example. You fill x and y with your data.

If you see reference link for bar MATLAB function you can find interesting example where you can customize bar plot. Ex: you can specify facecolor, edgecolor by giving RGB values.

Heya :) 2020-2-29

Can you please tell me why i am getting this error that (x should be the same length as y in the following program? I have checked the lengths and both are 19.

close all; clear all; clc;

x = -9:1:9;

y = zeros(2,20);

y(2)=(0.05);

y(10)=(0.8);

y(19)=(0.05);

bar(x,y,0)

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