% MNEMONIC = WFDB_ecgstr(CODE);
%
% Translate WFDB annotation code(s) to mnemonic(s).
%
% CODE:     Annotation code<s) (scalar or vector)
% MNEMONIC: Resulting annotation mnemonic(s).  If CODE is scalar,
%   MNEMONIC is a string; otherwise, MNEMONIC is a cell of strings.
%
% http://www.physionet.org