Programming and Data Types: Index (Programming and Data Types)

Programming and Data Types

Symbols

%

for comment lines 19

for H1 and help text lines 18

A

accuracy of calculations 29

adding

cells to cell arrays 142

fields to structure arrays 131

aggregation 219

AND operator, rules for evaluating 38

answer, assigned to ans 29

arguments

checking number of 22

defined for function 17

order

varargin, varargout 24, 26 <1> <2>

passing by reference 22

passing by value 22

passing variable number 24

arithmetic expressions 34

arithmetic operators

overloading 211

arrays

cell array of strings 94

dimensions

inverse permutation 115

multidimensional 105

numeric

converting to cell array 151

assignment statements

building structure arrays with 126

local and global variables 27

automatic scalar expansion 35

B

base (numeric), converting 101

base number conversion 90

binary from decimal conversion 101

blanks

finding in string arrays 98

removing from strings 93

C

C++ and MATLAB OOP 190

caching

MATLAB directory 14

MATLAB/toolbox directory 14

calling context 22

calling MATLAB functions

compiling for later use 21

how MATLAB searches for functions 20

storing as pseudocode 21

canonical class 191

case conversion 89

cat 104, 109, 120 <1> <2> <3>

catch

for error handling 67

cell

accessing a subset of cells 145

cell arrays 140

accessing a subset of cells 145

accessing data 144

applying functions to 148

cell indexing 141

concatenating 143

content indexing 142

converting to numeric array 151

using assignments 141

with cells function 144

with curly braces 143

deleting cells 145

deleting dimensions 145

multidimensional 120

building with the cells function 150

comparing strings 97

of structures 152

organizing data 148

preallocating 81, 144 <1> <2>

replacing comma-separated list with 146

visualizing 142

cell data type 32

cells

building nested arrays with 150

preallocating empty arrays with 141, 144 <1> <2>

char data type 32

character arrays 91

categorizing characters of 98

comparing values on cell arrays 97

concatenating 62

conversion 89, 101 <1> <2>

converting to cell arrays 94

delimiting character 99

evaluating 62, 102 <1> <2>

finding a substring 99

functions that test 88

in cell arrays 94

padding for equal row length 92

removing trailing blanks 93

representation 91

searching and replacing 99

two-dimensional 92

using relational operators on 97

characters

corresponding ASCII values 93

finding in string 98

class directories 189

class function 193

clearing definition 189

constructor method 192

methods required by MATLAB 191

object-oriented methods 185

clear 21, 82 <1> <2>

colon operator 34

for multidimensional array subscripting 111

indexing a page with 117

scalar expansion with 107

to access subsets of cells 145

column vector

comma to separate function arguments 17

comma-separated list

using cell arrays 146

comments in code 19

comparing

complex conjugate transpose operator 34

computational functions

applying to cell arrays 148

applying to multidimensional arrays 116

applying to structure fields 131

computer type 29

concatenating

cell arrays 143

conditional statements 22

constructor methods 192

using class in 193

containment 219

content indexing 142

to access cell contents 144

Contents.m file 13

converter methods 202, 207 <1> <2>

converting

base numbers 90

cases of strings 89

strings 89, 101 <1> <2>

creating

multidimensional array 106

string array 92

structure array 126

curly braces

for cell array indexing 141, 143 <1> <2>

to build cell arrays 143

to nest cell arrays 150

D

data class hierarchy 186

data organization

cell arrays 148

multidimensional arrays 118

structure arrays 133

sparse matrices 30

user-defined 186

UserObject 32

datenum 72, 73 <1> <2>

dates

handling and converting 70

string, vector of input 73

datestr 72, 73 <1> <2>

debugging class methods 188

decimal representation

to hexadecimal 101

default function 169

deleting

cells from cell array 145

fields from structure arrays 131

matrix rows and columns 57

deletion operator 57

delimiter in string 99

dim argument for cat 109

dimensions

removing singleton 113

directories

adding to path 189

Contents.m file 13

MATLAB

private 53, 188 <1> <2>

dispatch type 250

dispatching priority 20

display method 194

displaying

cell arrays 142

error and warning messages 68

field names for structure array 127

double data type 32

double-precision matrix 30

E

editor

for creating M-files 11, 13 <1> <2>

element-by-element organization for structures 136

else, elseif 43, 44 <1> <2>

empty arrays

and if statement 45

and relational operators 37

and while loops 47

empty matrices 65

end method 200

equal to operator 36

eval

for error handling 67

evaluating

string containing function name 62

string containing MATLAB code 102

string containing MATLAB expression 62

examples

checking number of function arguments 22

container class 236

inheritance 220

M-file for structure array 133

polynomial class 206

vectorization 79

exclusive OR operator 39

execution,pausing 77

expanding

cell arrays 142

structure arrays 126

expressions

involving empty arrays 37

most recent answer 29

overloading 203

scalar expansion with 35

external program, running from MATLAB 78

F

feval

using on function handles 157, 163 <1> <2>

using on function name strings 182

fieldnames 127

fields 125, 126 <1> <2>

accessing data within 128

accessing with getfield 130

adding to structure array 131

applying functions to 131

all like-named fields 132

assigning data to 126

assigning with setfield 130

deleting from structures 131

indexing within 129

writing M-files for 132

find function

and subscripting 40

finding

substring within a string 99

floating-point number

floating-point relative accuracy 29

flow control 43

for 48, 151 <1> <2>

format

fragmentation, reducing 82

func2str

description 175

function definition line 12, 17 <1> <2>

for subfunction 51

function handles 32, 155 <1> <2>

benefits of 157

constructing 161

converting from function name string 176

converting to function name string 175

effect on performance 159

error conditions 180

evaluating a nonscalar function handle 181

including path in the constructor 180

nonexistent function 180

finding the binding functions 167

for subfunctions, private functions 158

maximum name length 161

operations on 175

overloading 157, 163, 172 <1> <2> <3>

overview of 156

saving and loading 179

testing for data type 177

testing for equality 177

types

constructor 172

subfunction 173

function name string

converting from function handle 175

converting to function handle 176

function workspace 22

applying

to multidimensional structure arrays 122

to structure contents 131

applying to cell arrays 148

arguments

passing variable number of 24

body 12, 18 <1> <2>

calling context 22

characteristics 11

clearing from memory 21

computational, applying to structure fields 131

creating arrays with 108

dispatching priority 20

executing function name string 62

inferiorto 248

multiple output values 17

optimization 79

order of arguments

varargin, varargout 24, 26 <1> <2>

overloaded methods 170

overloading 203, 205, 213 <1> <2> <3>

storing as pseudocode 21

subassign 199

superiorto 248

functions command

description 167

for constructor function handles 172

for overloaded function handles 172

for private function handles 174

for simple function handles 171

for subfunction handles 173

return fields 168

G

get method 195

global variables 27

rules for use 28

greater than operator 36

greater than or equal to operator 36

H

H1 line 12, 18 <1> <2>

and help command 12

and lookfor command 12

hexadecimal, converting from decimal 101

hierarchy of data classes 186

I

and empty arrays 45

imaginary unit 29

indexed reference 196

multidimensional arrays 111

nested cell arrays 151

nested structure arrays 139

structures within cell arrays 153

within structure fields 129

indices, how MATLAB calculates 61

inferiorto function 248

infinity (represented in MATLAB) 29

inheritance

example class 220

input

from keyboard 77

obtaining from M-file 77

integers, changing to strings 101

interactive user input 77

inverse permutation of array dimensions 115

ipermute 104, 115 <1> <2>

using with function handles 177

isequal

using with function handles 177

J

Java and MATLAB OOP 190

L

and error handling 67

less than operator 36

less than or equal to operator 36

function handles 179

loading objects 242

loadobj example 244

local variables 27

logical expressions 37

and subscripting 40

logical functions 39

logical operators 37

rules for evaluation 38

lookfor 12, 18 <1> <2>

loops

M

MATLAB

data type classes 186

programming

matrices

accessing multiple elements 55

accessing single elements 54

advanced indexing 59

concatenating 58

deleting rows and columns 57

matrix

as index for for loops 48

double-precision 30

power operator 35

single-precision 30

See also matrices

memory

allocating for variables 84

function workspace 22

Out of Memory message 86

reducing fragmentation 82

determining which is called 252

invoking on objects 187

required by MATLAB 191

M-files

corresponding to functions 204

creating

in MATLAB directory 14

in MATLAB directory tree 14

creating with text editor 13

dispatching priority 20

input

obtaining interactively 77

operating on structures 132

optimization 79

pausing during execution 77

primary function 51

superseding existing names 52

Microsoft Windows

MATLAB use of system resources 85

multidimensional arrays 104

applying functions 116

element-by-element functions 116

matrix functions 117

vector functions 116

cell arrays 120

computations on 116

at the command line 106

with functions 108

with the cat function 109

avoiding ambiguity 111

with the colon operator 111

number of dimensions 110

organizing data 118

permuting dimensions 114

removing singleton dimensions 113

structure arrays 121

applying functions 122

multiple conditions for switch 46

multiple inheritance 218

multiple output values 17

N

names

structure fields 127

ndims 104, 110 <1> <2>

nesting

cell arrays 150

if statements 44

newlines in string arrays 98

not equal to operator 36

NOT operator

rules for evaluating 38

Not-a-Number 29

number of arguments 22

numbers

changing to strings 101

O

object-oriented programming 184

converter functions 207

features of 185

inheritance

overloading 203, 205 <1> <2>

subscripting 196

See also classes and objects

objects

accessing data in 195

as indices into objects 201

invoking methods on 187

offsets for indexing 61

ones 56, 108 <1> <2>

operator precedence 40

applying to cell arrays 148

applying to structure fields 131

colon 34, 107, 111, 117, 145 <1> <2> <3> <4> <5>

complex conjugate 34

greater than 36

greater than or equal to 36

less than or equal to 36

matrix power 35

not equal to 36

overloading 185, 203 <1> <2>

optimization 79

preallocation, array 81

vectorization 79

organizing data

cell arrays 148

multidimensional arrays 118

structure arrays 133

Out of Memory message 86

overloading 196

arithmetic operators 211

functions 203, 205, 213 <1> <2> <3>

P

page subscripts 105

parentheses

for input arguments 17

overriding operator precedence with 41

passing arguments

by reference 22

path

adding directories to 189

pausing during M-file execution 77

PCs and MATLAB use of system resources 85

percent sign (comments) 19

permute 104, 114 <1> <2>

permuting array dimensions 114

persistent variables 28

pie3 function overloaded 239

plane organization for structures 135

polynomials

example class 206

power operator 34

preallocation 81

cell array 81, 144 <1> <2>

structure array 82

precedence

primary function 51

private directories 53

private directory

in dispatching priority 20

private functions 53

function handles to 158, 174 <1> <2>

precedence of 251

private methods 188

programming, object-oriented 184

programs

running external 78

Q

R

reducing memory fragmentation 82

reference, subscripted 196

relational operators

empty arrays 37

removing

cells from cell array 145

fields from structure arrays 131

singleton dimensions 113

replacing substring within string 99

reshape 112, 146 <1> <2>

reshaping

cell arrays 146

multidimensional arrays 112

S

function handles 179

saveobj example 244

saving

scalar

and relational operators 97

scripts 11, 15 <1> <2>

characteristics 11

set method 195

shell escape functions 78

simple inheritance 217

sin 15, 116 <1> <2>

single data type 31

single-precision matrix 30

size

structure arrays 131

structure fields 131

size 110, 131 <1> <2>

smallest value system can represent 29

sparse data type 32

sparse matrix 30

special values 29

square brackets

for output arguments 17

squeeze 104, 113, 117 <1> <2> <3>

statements

storage

str2func

description 176

strings

See also character arrays

struct data type 32

structs 126, 127, 138 <1> <2> <3>

structure arrays 125

accessing data 128, 130 <1> <2>

adding fields 131

applying functions to 131

using structs 127

data organization 133

deleting fields 131

element-by-element organization 136

expanding 126, 127 <1> <2>

assigning data to 126

assigning using setfield 130

indexing

nested structures 139

within fields 129

multidimensional 121

applying functions 122

obtaining field names 127

organizing data 133

plane organization 135

preallocation 82

subarrays,accessing 129

subscripting 126

used with classes 190

within cell arrays 152

writing M-files for 132

structures

See also structure arrays

subassign 199

subfunctions 51

definition line 51

function handles to 158, 173 <1> <2>

in dispatching priority 20

precedence of 251

subscripted assignment 199

subscripting 54

how MATLAB calculates indices 61

multidimensional arrays 105

overloading 196

structure arrays 126

with logical expression 40

with the find function 40

subsref method 196

substring within a string 99

subtraction operator 34

superiorto function 248

superseding existing M-files names 52

case groupings 45

multiple conditions 46

T

tabs in string arrays 98

time

token in string 99

transpose 115

trigonometric functions 15, 116 <1> <2>

U

uint data type 32

unary minus operator 34

user classes, designing 191

user input

obtaining interactively 77

UserObject data type 32

V

value

largest system can represent 29

varargin 25, 148 <1> <2>

in argument list 26

unpacking contents 25

in argument list 26

packing contents 25

variables

deleting

and memory use 83

dispatching priority 20

rules for use 28

memory usage 84

replacing list with a cell array 146

storage in memory 83

vector

preallocation 81

vectorization 79

replacing for

vectorization 43

version, obtaining 29

visualizing

W

which used with methods 252

empty arrays 47

white space

finding in string 98

interpreting memory use 83

Windows

MATLAB use of system resources 85

workspace

of individual functions 22

X

Z

Querying Which Method MATLAB Will Call