Matlab Quick Reference (Page 4 of 12) in pdf

Structure Functions

Replicate and tile an array

Single index from subscripts

repmat

sub2ind

Reshape array

Field names of a structure

reshape

fieldnames

Sound Processing Functions

Rotate matrix 90 degrees

Get field of structure array

rot90

getfield

Lower triangular part of a matrix

Remove structure fields

tril

rmfield

General Sound Functions

Upper triangular part of a matrix

triu

Set field of structure array

setfield

Convert linear audio signal to mu-law

lin2mu

: (colon)

Index into array, rearrange array

struct

Create structure array

Convert mu-law audio signal to linear

mu2lin

Structure to cell array conversion

struct2cell

Convert vector into sound

sound

Vector Functions

Scale data and play as sound

soundsc

MATLAB Object Functions

Vector cross product

cross

Create object or return class of object

class

Vector dot product

dot

SPARCstation-Specific Sound Functions

Detect an object of a given class

isa

Set intersection of two vectors

intersect

Display method names

Read NeXT/SUN (.au) sound file

methods

auread

Detect members of a set

ismember

Displays information on all methods implemented by

Write NeXT/SUN (.au) sound file

auwrite

methodsview

Return the set difference of two vector

a class

setdiff

Set exclusive or of two vectors

setxor

Overloaded method for A(I)=B, A{I}=B, and

subsasgn

A.field=B

.WAV Sound Functions

Set union of two vectors

union

Overloaded method for X(A)

subsindex

Unique elements of a vector

Play recorded sound on a PC-based audio output device

unique

wavplay

subsref

Overloaded method for A(I), A{I} and A.field

Read Microsoft WAVE (.wav) sound file

wavread

Specialized Matrices

Record sound using a PC-based audio input device

wavrecord

Cell Array Functions

Companion matrix

Write Microsoft WAVE (.wav) sound file

compan

wavwrite

Create cell array

cell

Test matrices

gallery

Apply a function to each element in a cell array

cellfun

File I/O Functions

hadamard

Hadamard matrix

Create cell array of strings from character array

cellstr

Hankel matrix

hankel

File Opening and Closing

Cell array to structure array conversion

cell2struct

Hilbert matrix

hilb

Close one or more open files

fclose

Display cell array contents

celldisp

Inverse of the Hilbert matrix

invhilb

Open a file or obtain information about open files

fopen

Graphically display the structure of cell arrays

cellplot

Magic square

magic

Convert a numeric array into a cell array

num2cell

Pascal matrix

pascal

Unformatted I/O

Toeplitz matrix

toeplitz

Multidimensional Array Functions

Wilkinson’s eigenvalue test matrix

wilkinson

Read binary data from file

fread

Concatenate arrays

cat

Write binary data to a file

fwrite

flipdim

Flip array along a specified dimension

Bitwise Functions

Subscripts from linear index

ind2sub

Bit-wise AND

bitand

Formatted I/O

Inverse permute the dimensions of a multidimensional

Complement bits

bitcmp

ipermute

array

Return the next line of a file as a string without line terminator(s)

fgetl

Bit-wise OR

bitor

Generate arrays for multidimensional functions and

Return the next line of a file as a string with line terminator(s)

ndgrid

fgets

Maximum floating-point integer

bitmax

interpolation

Write formatted data to file

fprintf

Set bit

bitset

Number of array dimensions

ndims

Read formatted data from file

fscanf

Bit-wise shift

bitshift

Rearrange the dimensions of a multidimensional array

permute

Get bit

Reshape array

bitget

reshape

Bit-wise XOR

bitxor

Shift dimensions

File Positioning

shiftdim

Remove singleton dimensions

squeeze

Test for end-of-file

feof

Matlab Quick Reference Page 4

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