MATLAB Function Reference

isfield

Determine if item is a MATLAB structure array field

Syntax

• tf = isfield(A,'field')
  

Description

tf = isfield(A,'field')    returns logical true (1) if field is the name of a field in the structure array A, and logical false (0) otherwise.

Examples

Given the following MATLAB structure,

• patient.name = 'John Doe';
  patient.billing = 127.00;
  patient.test = [79 75 73; 180 178 177.5; 220 210 205];
  

isfield identifies billing as a field of that structure.

• isfield(patient,'billing')
  
  ans =
  
       1
  

See Also
struct, isstruct, iscell, isa, is*

isevent (COM)

isfinite