Introduction

Subplots allow us to plot multiple charts on the same figure in a grid. The axes are created in tiled positions. We can create subplots using the subplot command. For example,

subplot(m,n,k)

divides the figure into m x n  grid and k is the kth subplot in the m x n grid.

Let’s create subplots for four sample trigonometric functions like:

• sin(x)
• cos(x)
• tan(x)
• sin(x)*cos(x)

We will create the four subplots in a 2×2 grid.

MATLAB Script

% Subplots Example - www.TestingDocs.com
% Creates 2x2 subplots

% Create x and y vectors 
x = linspace(-2*pi,2*pi,100);
y1 = sin(x);
y2 = cos(x);
y3 = tan(x);
y4 = sin(x).*cos(x);

% Create 4 Subplots
subplot(2,2,1);
plot(x,y1);
xlabel('x - axis')
ylabel('y - axis')
title('sin(x) plot');
grid on;

subplot(2,2,2);
plot(x,y2);
xlabel('x - axis')
ylabel('y - axis')
title('cos(x) plot');
grid on;

subplot(2,2,3);
plot(x,y3);
xlabel('x - axis')
ylabel('y - axis')
title('tan(x) plot');
grid on;

subplot(2,2,4);
plot(x,y4);
xlabel('x - axis')
ylabel('y - axis')
title('sin(x)*cos(x) plot');
grid on;