MATLAB Programming Fundamentals - MathWorks

Function Basics

20

Create Functions in Files......................... 20-2

Syntax for Function Definition................... 20-3

Contents of Functions and Files .................. 20-4

End Statements.............................. 20-4

Add Help for Your Program ....................... 20-6

Run Functions in the Editor....................... 20-8

Base and Function Workspaces................... 20-10

Share Data Between Workspaces .................. 20-11

Introduction................................ 20-11

Best Practice: Passing Arguments ................ 20-11

Nested Functions............................ 20-12

Persistent Variables.......................... 20-12

Global Variables ............................. 20-13

Evaluating in Another Workspace................ 20-14

Check Variable Scope in Editor ................... 20-16

Use Automatic Function and Variable Highlighting... 20-16

Example of Using Automatic Function and Variable

Highlighting.............................. 20-17

Types of Functions.............................. 20-20

Local and Nested Functions in a File............. 20-20

Private Functions in a Subfolder................. 20-21

Anonymous Functions Without a File ............. 20-21

Anonymous Functions ........................... 20-24

What Are Anonymous Functions?................ 20-24

Variables in the Expression ..................... 20-25

Multiple Anonymous Functions .................. 20-26

Functions with No Inputs ...................... 20-27

Functions with Multiple Inputs or Outputs ......... 20-27

Arrays of Anonymous Functions................. 20-28

Local Functions................................ 20-30

xxi