isfield

Checks if a fieldname exists in a struct.

Syntax

• res = isfield(S, name)
• res = isfield(S, C)

Input argument

• S - a struct
• name - a string
• C - a cell

Output argument

• res - a logical

Description

isfield(A) returns true if name is a fieldname of S.

Examples

S.Nelson = 1;
isfield(S, 'Nel')
isfield(S, 'Nelson')

S.nel = 1;
S.son = 2;
isfield(S,{ 1, 'nel'; 2, 'son'})

See also

fieldnames.

History

Author

Allan CORNET