Plotting data with Octave

Overview

In this tutorial, we will learn detailed steps to plot data using an Octave script.

Sample function

We can choose any function. Let’s choose a simple function y defined as:

y= 1/(x^2 + 1);

Generate x vector with some sample points from 0 to 10.

x=linspace(0,10,100);

Calculate y vector.

y= 1./(x.^2 + 1) ;

Steps to create Script

Launch Octave.

File >> New >> New Script

File >> Save File to save the file.

Plot command

 

%Plotting data using OCtave
        x=linspace(0,10,100);

        y= 1./(x.^2 + 1) ;

        %Plot graph

        figure

        %plot command

        plot(x,y,'ro','MarkerSize',30)

        xlabel('x')

        ylabel('y')

        title('Sample Plot');

Screenshot

 

Octave Tutorial on this website can be found at:
https://www.testingdocs.com/octave-tutorial/

More information on Octave can be found on the official website:
https://www.gnu.org/software/octave/index