/usr/share/freemat/toolbox/array/isfield.m is in freemat-data 4.0-5build1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 | % ISFIELD ISFIELD Test for Existence of a Structure Field
%
% Usage
%
% Given a structure array, tests to see if that structure
% array contains a field with the given name. The syntax
% for its use is
%
% y = isfield(x,field)
%
% and returns a logical 1 if x has a field with the
% name field and a logical 0 if not. It also returns
% a logical 0 if the argument x is not a structure array.
% Copyright (c) 2002-2006 Samit Basu
% Licensed under the GPL
function y = isfield(x,field)
if (isa(x,'struct'))
y = any(strcmp(fieldnames(x),field));
else
y = logical(0);
end
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