Basics of Plotting in Matlab Matlab 绘图基础知识.pdf

Plotting in Matlab

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Basics of Plotting in Matlab

GSF 3/22/12

Table of Contents

• Basic Overview

o Syntax

o Labeling Axes

o Legends

Basic Overview

To use the ‘plot’ function in Matlab, you should first make sure that the matrices/vectors

you are trying to use are of equal dimensions. For example, if I wanted to plot vector X = [3 9

27] over time, my vector for time would also need to be a 1x3 vector (i.e. t = [1 2 3]).

• Syntax

To plot the example vectors above in a new figure:

clear all % clear all previous variables

X = [3 9 27]; % my dependent vector of interest

t = [1 2 3]; % my independent vector

figure % create new figure