Nelson
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    • en
      • Summary
      • Assertion functions
        • SUMMARY
        • assert
        • assert_checkerror
        • assert_isapprox
        • assert_isequal
        • assert_isfalse
        • assert_istrue
      • Audio playback
        • SUMMARY
        • audiodevinfo
        • audioinfo
        • audiometadata
        • audioplayer
        • audioplayer_delete
        • audioplayer_fieldnames
        • audioplayer_get
        • audioplayer_pause
        • audioplayer_set
        • audioplayer_stop
        • audioplayer_used
        • audioread
        • audiosupportedformats
        • audiowrite
        • beep
        • isplaying
        • lin2mu
        • mu2lin
        • play
        • playblocking
        • resume
        • sound
        • soundsc
        • stop
      • changelogs
        • CHANGELOG-0.1.x
        • CHANGELOG-0.2.x
        • CHANGELOG-0.3.x
        • CHANGELOG-0.4.x
        • CHANGELOG-0.5.x
        • Changelog
        • Changelog
        • Changelog
      • Characters encoding
        • SUMMARY
        • native2unicode
        • nativecharset
        • unicode2native
      • COM engine
        • COM examples
        • COM_delete
        • COM_fieldnames
        • COM_get
        • COM_invoke
        • COM_ismethod
        • COM_isprop
        • COM_methods
        • COM_range
        • COM_set
        • COM_used
        • COM_xlsfinfo
        • COM_xlsread
        • COM_xlswrite
        • SUMMARY
        • actxGetRunningServer
        • actxcontrollist
        • actxserver
        • actxserverlist
        • iscom
      • Console
        • SUMMARY
        • clc
        • input
        • terminal_size
      • Constructors functions
        • Inf
        • NaN
        • SUMMARY
        • diag
        • eps
        • eye
        • i
        • ones
        • pi
        • zeros
      • Control System functions
        • SUMMARY
        • abcdchk
        • acker
        • append
        • augstate
        • balreal
        • bdschur
        • bode
        • c2d
        • care
        • cloop
        • compreal
        • ctrb
        • ctrbf
        • d2c
        • damp
        • dare
        • dcgain
        • dlqr
        • dlyap
        • dsort
        • esort
        • evalfr
        • feedback
        • freqresp
        • gensig
        • gram
        • hsvd
        • impulse
        • initial
        • isct
        • isdt
        • islti
        • issiso
        • isstatic
        • kalman
        • lqe
        • lqed
        • lqr
        • lqry
        • lsim
        • lyap
        • minreal
        • nyquist
        • obsv
        • obsvf
        • ord2
        • padecoef
        • parallel
        • pole
        • series
        • ss
        • ss2tf
        • ssdata
        • ssdelete
        • ssselect
        • step
        • tf
        • tf2ss
        • tfdata
        • tzero
        • zero
      • Core
        • SUMMARY
        • banner
        • eval
        • evalc
        • evalin
        • execstr
        • exist
        • exit
        • feature
        • inputname
        • isunicodesupported
        • license
        • maxNumCompThreads
        • namelengthmax
        • nargin
        • narginchk
        • nargout
        • nargoutchk
        • nelsonroot
        • nfilename
        • pause
        • prefdir
        • quit
        • run
        • sha256
        • version
      • Data analysis
        • SUMMARY
        • conv
        • conv2
        • cumprod
        • cumsum
        • ismissing
        • issorted
        • max
        • min
        • prod
        • sort
        • sum
        • unique
      • Data structures
        • SUMMARY
        • cell
        • cell2mat
        • cell2struct
        • celldisp
        • cellfun
        • cellstr
        • fieldnames
        • getfield
        • iscellstr
        • isfield
        • namedargs2cell
        • num2cell
        • orderfields
        • rmfield
        • setfield
        • struct
        • struct2cell
      • Debugger functions
        • SUMMARY
        • dbstack
      • Dictionaries
        • SUMMARY
        • configureDictionary
        • dictionary
        • entries
        • insert
        • isConfigured
        • isKey
        • keyHash
        • keyMatch
        • keys
        • lookup
        • numEntries
        • remove
        • types
        • values
      • Display format
        • SUMMARY
        • disp
        • display
        • echo
        • format
        • formattedDisplayText
      • Double
        • SUMMARY
        • double
        • flintmax
        • realmax
        • realmin
      • Dynamic link
        • Build C/C++ code on the fly
        • Supported C/C++ compilers
        • libpointer datatype
        • SUMMARY
        • cmake
        • configuremingw
        • configuremsvc
        • dlcall
        • dlclose
        • dlgeneratecleaner
        • dlgenerategateway
        • dlgenerateloader
        • dlgeneratemake
        • dlgenerateunloader
        • dlgetnelsonincludes
        • dlgetnelsonlibraries
        • dllib_used
        • dllibinfo
        • dllibisloaded
        • dlmake
        • dlopen
        • dlsym
        • dlsym_delete
        • dlsym_used
        • findcmake
        • getdynlibext
        • havecompiler
        • libpointer
        • libpointer_delete
        • libpointer_isNull
        • libpointer_plus
        • libpointer_reshape
        • libpointer_setdatatype
        • libpointer_used
        • loadcompilerconf
        • removecompilerconf
        • vswhere
      • Elementary functions
        • SUMMARY
        • abs
        • allfinite
        • angle
        • base2dec
        • bernsteinMatrix
        • bin2dec
        • bin2num
        • blkdiag
        • cast
        • ceil
        • circshift
        • complex
        • conj
        • deal
        • dec2base
        • dec2bin
        • dec2hex
        • exp
        • factorial
        • filter
        • find
        • fix
        • flip
        • flipdim
        • fliplr
        • flipud
        • floor
        • hadamard
        • hankel
        • hex2dec
        • hilb
        • hypot
        • imag
        • ind2sub
        • invhilb
        • ipermute
        • isapprox
        • iscolumn
        • istriu
        • isequal
        • isequaln
        • isequalto
        • isfinite
        • isinf
        • ismatrix
        • isnan
        • isrow
        • isscalar
        • istril
        • istriu
        • isvector
        • length
        • linspace
        • log
        • log10
        • log1p
        • log2
        • logspace
        • magic
        • meshgrid
        • minus
        • mod
        • ndgrid
        • ndims
        • nextpow2
        • norm
        • normest
        • nthroot
        • num2bin
        • numel
        • permute
        • pinv
        • pow2
        • real
        • rem
        • repmat
        • reshape
        • rosser
        • rot90
        • round
        • shiftdim
        • sign
        • size
        • sqrt
        • squeeze
        • sub2ind
        • substruct
        • swapbytes
        • toeplitz
        • tril
        • triu
        • vander
        • wilkinson
      • Engine
        • SUMMARY
        • argv
        • executable
        • finish
        • getnelsonmode
        • isquietmode
        • System Requirements
        • #! shebang
        • startup
      • Error manager
        • MException
        • SUMMARY
        • error
        • getLastReport
        • lasterror
        • lastwarn
        • rethrow
        • throw
        • throwAsCaller
        • warning
      • Fortran to C
        • SUMMARY
        • f2c
      • FFTW
        • FFTW License
        • FFTWwrapper
        • SUMMARY
        • fft
        • fft2
        • fftn
        • fftshift
        • fftw
        • ifft
        • ifftn
        • ifftshift
      • File archiver functions
        • SUMMARY
        • unzip
        • zip
      • Files and folders functions
        • SUMMARY
        • cd
        • copyfile
        • diff_file
        • dir
        • fileparts
        • filesep
        • fullfile
        • fullpath
        • isdir
        • isfile
        • isfolder
        • ls
        • mkdir
        • pathsep
        • pwd
        • relativepath
        • rmdir
        • rmfile
        • tempdir
        • tempname
        • userdir
      • Function_handle functions
        • SUMMARY
        • Anonymous Functions
        • func2str
        • isfunction_handle
        • str2func
      • Functions manager
        • SUMMARY
        • addpath
        • builtin
        • clearfun
        • feval
        • inmem
        • isbuiltin
        • ismacro
        • ismex
        • macroargs
        • path
        • private functions
        • rehash
        • restoredefaultpath
        • rmpath
        • userpath
        • what
        • which
      • Geometry
        • SUMMARY
        • rotx
        • roty
        • rotz
      • Graphics functions
        • SUMMARY
        • abyss
        • ancestor
        • autumn
        • axes
        • axis
        • bar
        • bone
        • cla
        • clf
        • clim
        • close
        • colorbar
        • colormap
        • colstyle
        • contour
        • contour3
        • cool
        • copper
        • cylinder
        • drawnow
        • figure
        • fill
        • frame2im
        • gca
        • gcf
        • getframe
        • Managing Callback Interruptions in Nelson
        • gray
        • grid
        • groot
        • hggroup
        • hist
        • hold
        • hot
        • im2double
        • im2frame
        • image
        • imagesc
        • imread
        • imshow
        • imwrite
        • is2D
        • isValidGraphicsProperty
        • isgraphics
        • ishold
        • jet
        • legend
        • line
        • loglog
        • mesh
        • meshz
        • movie
        • newplot
        • pan
        • parula
        • patch
        • pcolor
        • pie
        • pink
        • plot
        • plot3
        • quiver
        • refresh
        • rgbplot
        • ribbon
        • rotate3d
        • saveas
        • scatter
        • semilogx
        • semilogy
        • sky
        • sphere
        • spring
        • spy
        • stairs
        • stem
        • subplot
        • summer
        • surf
        • surface
        • text
        • title
        • turbo
        • uicontrol
        • validatecolor
        • view
        • viridis
        • waitfor
        • waitforbuttonpress
        • waterfall
        • white
        • winter
        • xlabel
        • xlim
        • ylabel
        • ylim
        • zlabel
        • zlim
        • zoom
      • Graphics I/O functions
        • SUMMARY
        • copygraphics
        • imformats
        • imread
        • imwrite
        • saveas
      • Gui module
        • SUMMARY
        • commandhistory
        • errordlg
        • filebrowser
        • helpdlg
        • inserthtml
        • lookandfeel
        • msgbox
        • qt_verbose
        • questdlg
        • uigetdir
        • helpdlg
        • workspace
      • Handle
        • SUMMARY
        • delete
        • get
        • invoke
        • ismethod
        • isprop
        • isvalid
        • methods
        • properties
        • set
      • HDF5
        • SUMMARY
        • h5create
        • h5dump
        • h5ls
        • h5read
        • h5readatt
        • h5write
        • h5writeatt
        • isnh5file
        • loadnh5
        • savenh5
        • whonh5
        • whosnh5
      • Help browser functions
        • SUMMARY
        • doc
        • helpbrowser
      • Help tools functions
        • SUMMARY
        • buildhelp
        • buildhelpmd
        • buildhelpweb
        • docroot
        • headcomments
        • htmltopdf
        • markdown
        • xmldocbuild
        • xmldocchecker
        • xmldoctohelp
        • xmldoctohtml
        • xmldoctomd
      • History manager
        • SUMMARY
        • history
      • I18n functions
        • SUMMARY
        • gettext
        • i18nHelpers
        • poheader
      • Integers type
        • SUMMARY
        • int16
        • int32
        • int64
        • int8
        • intmax
        • intmin
        • uint16
        • uint32
        • uint64
        • uint8
      • Interpreter functions
        • SUMMARY
        • abort
        • break
        • continue
        • for
        • function
        • if
        • iskeyword
        • keyboard
        • max_recursion_depth
        • numeric types
        • parsefile
        • parsestring
        • switch
        • try
        • while
      • Inter Process Communication
        • SUMMARY
        • getpid
        • ipc
      • JavaScript Object Notation
        • SUMMARY
        • jsondecode
        • jsonencode
        • jsonprettyprint
      • Julia engine
        • SUMMARY
        • jlenv
        • jlrun
        • jlrunfile
        • Julia Nelson types
      • license
        • gpl-3.0
        • GNU LESSER GENERAL PUBLIC LICENSE
        • Nelson license:
      • Linear algebra
        • SUMMARY
        • balance
        • bandwidth
        • chol
        • cond
        • condeig
        • det
        • diff
        • eig
        • expm
        • gradient
        • inv
        • isbanded
        • ishermitian
        • issymmetric
        • kron
        • logm
        • lu
        • orth
        • planerot
        • rank
        • rcond
        • rref
        • rsf2csf
        • schur
        • sqrtm
        • subspace
        • svd
        • trace
        • vecnorm
      • Localization functions
        • SUMMARY
        • getavailablelanguages
        • getdefaultlanguage
        • getlanguage
        • setlanguage
      • Logical type functions
        • SUMMARY
        • false
        • logical
        • true
        • xor
      • MATIO
        • SUMMARY
        • ismatfile
        • loadmat
        • savemat
        • whomat
        • whosmat
      • Memory manager functions
        • SUMMARY
        • acquirevar
        • assignin
        • clear
        • global
        • isglobal
        • isvar
        • memory
        • persistent
        • varislock
        • varlock
        • varunlock
        • who
        • whos
      • MEX functions
        • SUMMARY
        • dlgeneratemexgateway
        • engClose
        • engEvalString
        • engGetVariable
        • engGetVisible
        • engOpen
        • engOpenSingleUse
        • engOutputBuffer
        • engPutVariable
        • engSetVisible
        • mex
        • mexAtExit
        • mexCallMATLAB
        • mexCallMATLABWithTrap
        • mexext
      • Modules manager
        • SUMMARY
        • addgateway
        • addmodule
        • gatewayinfo
        • getmodules
        • ismodule
        • module.json
        • modulepath
        • nmm
        • nmm_build_help
        • nmm_build_loader
        • removegateway
        • removemodule
        • requiremodule
        • semver
        • toolboxdir
        • usermodulesdir
      • Message Passing Interface
        • MPI_Allreduce
        • MPI_Barrier
        • MPI_Bcast
        • MPI_Comm_delete
        • MPI_Comm_get_name
        • MPI_Comm_object
        • MPI_Comm_rank
        • MPI_Comm_size
        • MPI_Comm_split
        • MPI_Comm_used
        • MPI_Finalize
        • MPI_Get_library_version
        • MPI_Get_processor_name
        • MPI_Get_version
        • MPI_Init
        • MPI_Initialized
        • MPI_Iprobe
        • MPI_Probe
        • MPI_Recv
        • MPI_Reduce
        • MPI_Send
        • MPI examples
        • MPI overview
        • SUMMARY
        • mpiexec
      • NIG
        • SUMMARY
        • nig
      • Operators
        • SUMMARY
        • all
        • and
        • any
        • bitand
        • bitor
        • bitxor
        • cat
        • colon
        • ctranspose
        • eq
        • ge
        • gt
        • horzcat
        • ismember
        • ldivide
        • le
        • lt
        • minus
        • mldivide
        • mpower
        • mrdivide
        • mtimes
        • ne
        • not
        • or
        • plus
        • power
        • rdivide
        • shortcutand
        • shortcutor
        • subsasgn
        • subsindex
        • subsref
        • mtimes
        • transpose
        • uminus
        • uplus
        • vertcat
      • OS functions
        • SUMMARY
        • cmdsep
        • computer
        • createGUID
        • getenv
        • hostname
        • ismac
        • ispc
        • isunix
        • searchenv
        • setenv
        • system
        • username
        • winopen
        • winqueryreg
      • Overloading
        • SUMMARY
        • overloading
      • Parallel
        • SUMMARY
        • afterAll
        • afterEach
        • backgroundPool
        • cancel
        • cancelAll
        • fetchNext
        • fetchOutputs
        • parfeval
        • wait
      • Polynomials
        • SUMMARY
        • deconv
        • poly
        • polyder
        • polyfit
        • polyint
        • polyval
        • polyvalm
        • roots
      • Profiling tools
        • SUMMARY
        • profile
        • profsave
      • Python engine
        • The power of calling Python from Nelson
        • How to install python package
        • Python Nelson types
        • Python operators
        • SUMMARY
        • pyargs
        • pyenv
        • pyrun
        • pyrunfile
      • QML engine
        • QObject_classname
        • QObject_findchildren
        • QObject_get
        • QObject_iswidgettype
        • QObject_iswindowtype
        • QObject_methodsignature
        • QObject_root
        • QObject_set
        • QObject_undefine
        • QObject_used
        • SUMMARY
        • nelsonObject
        • qml_addimportpath
        • qml_addpluginpath
        • qml_clearcomponentcache
        • qml_collectgarbage
        • qml_createqquickview
        • qml_demos
        • qml_evaluatefile
        • qml_evaluatestring
        • qml_importpathlist
        • qml_loadfile
        • qml_loadstring
        • qml_offlinestoragepath
        • qml_pluginpathlist
        • qml_setofflinestoragepath
        • qt_constant
        • qt_version
      • Random
        • SUMMARY
        • rand
        • randn
        • randperm
        • rng
      • Signal Processing
        • SUMMARY
        • bartlett
        • blackman
        • db2mag
        • db2pow
        • filter2
        • hamming
        • hann
        • mag2db
        • pow2db
        • sinc
        • xcorr2
        • zp2tf
      • Single type
        • SUMMARY
        • single
      • SIO client
        • SUMMARY
        • doc
        • sioemit
        • siogetvariable
      • Subroutine Library In COntrol Theory
        • SLICOT License
        • SUMMARY
        • slicot_ab01od
        • slicot_ab04md
        • slicot_ab07nd
        • slicot_ab08nd
        • slicot_ag08bd
        • slicot_mb02md
        • slicot_mb03od
        • slicot_mb03pd
        • slicot_mb03rd
        • slicot_mb04gd
        • slicot_mb04md
        • slicot_mb05od
        • slicot_mc01td
        • slicot_sb01bd
        • slicot_sb02od
        • slicot_sb03md
        • slicot_sb03od
        • slicot_sb04md
        • slicot_sb04qd
        • slicot_sb10jd
        • slicot_sg02ad
        • slicot_tb01id
        • slicot_tg01ad
      • Sparse type
        • IJV
        • SUMMARY
        • full
        • nnz
        • nzmax
        • sparse
        • speye
        • spones
      • Special functions
        • SUMMARY
        • betainc
        • cross
        • dot
        • factor
        • gamma
        • gammaln
        • gcd
        • interp1
        • peaks
        • primes
      • Spreadsheet
        • SUMMARY
        • csvread
        • csvwrite
        • detectImportOptions
        • dlmread
        • dlmwrite
        • readcell
        • readmatrix
        • readtable
        • writecell
        • writematrix
        • writetable
      • Statistics
        • SUMMARY
        • corrcoef
        • cov
        • mean
        • normpdf
        • var
      • Stream manager
        • SUMMARY
        • diary
        • fclose
        • feof
        • ferror
        • fgetl
        • fgets
        • fileread
        • filewrite
        • fopen
        • fprintf
        • fread
        • frewind
        • fscanf
        • fseek
        • fsize
        • ftell
        • fwrite
        • load
        • save
        • sscanf
      • String type
        • SUMMARY
        • append
        • blanks
        • char
        • contains
        • convertCharsToStrings
        • convertStringsToChars
        • count
        • deblank
        • endsWith
        • int2str
        • isStringScalar
        • isletter
        • isspace
        • join
        • mat2str
        • matches
        • newline
        • num2str
        • replace
        • sprintf
        • startsWith
        • str2double
        • strcat
        • strcmp
        • strcmpi
        • strfind
        • string
        • strings
        • strjust
        • strlength
        • strncmp
        • strncmpi
        • strrep
        • strtrim
        • tolower
        • toupper
      • Tables
        • Accessing and Manipulating Tables in Nelson
        • Direct computation with Table
        • Read/Write table to files
        • SUMMARY
        • array2table
        • cell2table
        • head
        • height
        • istable
        • removevars
        • renamevars
        • struct2table
        • table
        • table2array
        • table2cell
        • table2struct
        • tail
        • width
      • Tests manager
        • SUMMARY
        • test_makeref
        • test_run
        • skip_testsuite
      • Text editor
        • SUMMARY
        • edit
        • editor
        • smartindent
      • Time functions
        • SUMMARY
        • addtodate
        • calendar
        • clock
        • cputime
        • date
        • datenum
        • datestr
        • datevec
        • eomday
        • etime
        • hour
        • leapyear
        • minute
        • now
        • second
        • sleep
        • tic
        • time
        • timeit
        • toc
        • weekday
      • Trigonometric functions
        • SUMMARY
        • acos
        • acosd
        • acosh
        • acot
        • acotd
        • acoth
        • acsc
        • acscd
        • acsch
        • asec
        • asecd
        • asech
        • asin
        • asind
        • asinh
        • atan
        • atan2
        • atan2d
        • atand
        • atanh
        • cart2pol
        • cart2sph
        • cos
        • cosd
        • cosh
        • cosm
        • cospi
        • cot
        • cotd
        • coth
        • csc
        • cscd
        • csch
        • deg2rad
        • pol2cart
        • rad2deg
        • sec
        • secd
        • sech
        • sin
        • sind
        • sinh
        • sinm
        • sinpi
        • sph2cart
        • tan
        • tand
        • tanh
        • tanm
      • Types module
        • SUMMARY
        • class
        • isa
        • iscell
        • ischar
        • isclass
        • isdouble
        • isempty
        • isfloat
        • ishandle
        • isint16
        • isint32
        • isint64
        • isint8
        • isinteger
        • islogical
        • isnumeric
        • isobject
        • isreal
        • issingle
        • issparse
        • isstring
        • isstruct
        • isuint16
        • isuint32
        • isuint64
        • isuint8
        • isvarname
      • Validators
        • SUMMARY
        • mustBeA
        • mustBeColumn
        • mustBeFile
        • mustBeFinite
        • mustBeFloat
        • mustBeFolder
        • mustBeGreaterThan
        • mustBeGreaterThanOrEqual
        • mustBeInRange
        • mustBeInteger
        • mustBeLessThan
        • mustBeLessThanOrEqual
        • mustBeLogical
        • mustBeLogicalScalar
        • mustBeMatrix
        • mustBeMember
        • mustBeNegative
        • mustBeNonNan
        • mustBeNonSparse
        • mustBeNonZero
        • mustBeNonempty
        • mustBeNonmissing
        • mustBeNonnegative
        • mustBeNonpositive
        • mustBeNonzeroLengthText
        • mustBeNumeric
        • mustBeNumericOrLogical
        • mustBePositive
        • mustBeReal
        • mustBeRow
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String type

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Last updated 5 months ago

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String type

Description

string type functions

  • - combines strings horizontally.

  • - creates an string of blank characters.

  • - Converts to a character array.

  • - checks if string contains with pattern.

  • - Convert chars arrays to string arrays.

  • - Convert string arrays to character arrays.

  • - Computes the number of occurrences of an pattern.

  • - Remove trailing whitespace.

  • - checks if string ends with pattern.

  • - Convert an integer array to a string

  • - checks if input is string array with one element.

  • - Determine which characters are letters.

  • - Determine which characters are space.

  • - Combine strings.

  • - Matrix to String.

  • - Determine if pattern matches with strings.

  • - Returns a newline character.

  • - Converts numbers to character array.

  • - Replaces strings in another.

  • - Writes data to a string.

  • - checks if string starts with pattern.

  • - Converts a string to double.

  • - concatenate strings horizontally.

  • - Strings comparaison.

  • - Strings comparaison (case insensitive).

  • - Find a string in another.

  • - string array constructor.

  • - Create string array without characters.

  • - Justify strings

  • - Length of strings in cell of strings or string array.

  • - Compares first n characters of strings.

  • - Compares first n characters of strings (case sensitive).

  • - Replaces strings in another.

  • - Remove leading and trailing whitespace.

  • - Lower case conversion.

  • - Upper case conversion.

append
blanks
char
contains
convertCharsToStrings
convertStringsToChars
count
deblank
endsWith
int2str
isStringScalar
isletter
isspace
join
mat2str
matches
newline
num2str
replace
sprintf
startsWith
str2double
strcat
strcmp
strcmpi
strfind
string
strings
strjust
strlength
strncmp
strncmpi
strrep
strtrim
tolower
toupper