% WFDB_osigfopen(S);
%
% Open output signal(s).  The signal specifications, including the signal file
% name(s), are supplied in the structure S (created using WFDB_Siginfo).
% Any previously open output signals are closed by WFDB_osigfopen.
%
% S: Structure with signal information. Create using WFDB_Siginfo.
%
% http://www.physionet.org