iFit/isfield

PURPOSE

SYNOPSIS

DESCRIPTION

 b = isfield(s, field) : check existence of field/alias in iData objects

   @iData/isfield function which checks if a name is already defined as a Property
       or Alias or unique definition in the iData object.
     isfield(s) returns the full list of defined fields and aliases in the
     object.
   isfield scope (Properties and Aliases) is more restricted than findfield and 
     strfind methods.

 input:  s: object or array (iData)
         field: name to check for (string)
 output: b: true when the name is already defined, false otherwise
 ex:     b=isfield(a, 'history');

 Version: Nov. 27, 2018
 See also iData, isfield, iData/findfield, iData/strfind

CROSS-REFERENCE INFORMATION

• cell [content,fields]=cell(s) : convert iData objects into cells
• end b = end(s,index,n) : end value for iData objects
• getalias [link, label,names] = getalias(s, 'AliasName') : get iData alias
• getaxis [val, lab] = getaxis(s, AxisIndex) : get iData axis value and label
• iData
• isempty isempty(s) : true for empty iData object
• size size(s) : get iData object size (number of elements)
• zeros s = zeros(s,N,M,P,...) : initialize an iData array

• commandhistory commandhistory(s) : show the command history of iData object
• edit edit(s) : edit iData object Signal/Monitor
• fft c = fft(a) : computes the Discrete Fourier transform of iData objects
• fits [pars,criteria,message,output] = fits(a, model, pars, options, constraints, ...) : fit data set on a model
• help c = help(s) : display iData information as a Dialogue window
• iData
• imroi imroi: define a region of interest on a data set
• load d = load(s, file, loader, ...): iData file loader
• plot h = plot(s, method, ...) : plot iData object
• saveas f = saveas(s, filename, format, options) : save iData object into various data formats
• subsasgn b = subsasgn(a,index,b) : iData indexed assignement
• subsref b = subsref(a,s) : iData indexed references