MATLAB Function Reference

substruct

Create structure argument for subsasgn or subsref

Syntax

• S = substruct(type1,subs1,type2,subs2,...)
  

Description

S = substruct(type1,subs1,type2,subs2,...) creates a structure with the fields required by an overloaded subsref or subsasgn method. Each type string must be one of '.', '()', or '{}'. The corresponding subs argument must be either a field name (for the '.' type) or a cell array containing the index vectors (for the '()' or '{}' types).

The output S is a structure array containing the fields:

• type - one of '.', '()', or '{}'
• subs - subscript values (field name or cell array of index vectors)

Examples

To call subsref with parameters equivalent to the syntax

• B = A(3,5).field
  

you can use

• S = substruct('()',{3,5},'.','field');
  B = subsref(A,S);
  

The structure created by substruct in this example contains the following.

• S(1)
  
  ans = 
  
      type: '()'
      subs: {[3]  [5]}
  
  S(2)
  
  ans = 
  
      type: '.'
      subs: 'field'
  

See Also

subsasgn, subsref

subsref

subvolume