isfield

Test whether a structure contains a named field.

Syntax

tf = isfield(s, fieldname)

Description

Returns true if s is a structure containing a field named fieldname. With a cell array of field names, returns a logical array — one element per name.

Examples

s.x = 1;
isfield(s, 'x')          % 1
isfield(s, {'x', 'y'})   % [1 0]

See also

• fieldnames — List of field names in a structure.
• isstruct — Test whether the input is a structure.