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wrann

    function varargout=wrann(varargin)

     wrann(recordName,annotator,ann,annType,subType,chan,num,comments)

        Wrapper to WFDB WRANN:
             http://www.physionet.org/physiotools/wag/wrann-1.htm

     Writes data into a WFDB annotation file. The file will be saved at the
     current directory (if the record is in the current directory) or, if a using
     a PhysioNet web record , a subdirectory in the current directory, with
     the relative path determined by recordName. The files will have the same
     name is the recordName but with a 'annotator' extension. You can use RDANN to
     verify that the write was completed sucessfully (see example below).

     NOTE: The WFDB Toolbox uses 0 based index, and MATLAB uses 1 based index.
           Due to this difference annotation values ('ann') are shifted inside
           this function in order to be compatible with the WFDB native
           library. The MATLAB user should leave the indexing conversion to
           the WFDB Toolbox.

     Required Parameters:

     recorName
           String specifying the name of the record in the WFDB path or
           in the current directory.

     annotator
           String specifying the name of the annotation file in the WFDB path or
           in the current directory.

     ann
           Nx1 vector of the integers. The time of the annotation, in samples,
           with respect to the signals in recordName. The values of ann are
           sample numbers (indices) with respect to the begining of the
           record.

     annType
           Nx1 vector of the chars or scalar describing annotation type. Default is 'N'.
           For a list of standard annotation codes used by PhyioNet, please see:
                 http://www.physionet.org/physiobank/annotations.shtml

     subType
           Nx1 vector of the chars or scalar describing annotation subtype.
           Default is '0'.

     chan
           Nx1 vector of the ints or scalar describing annotation CHAN. Default is 0.

     num
           Nx1 vector of the ints or scalar describing annotation NUM. Default is 0.

     comments
           Nx1 vector of the chars or scalar describing annotation comments. Default is ''.

    %Example- Creates a *.test file in your current directory
    [ann,type,subtype,chan,num]=rdann('challenge/2013/set-a/a01','fqrs');
     wrann('challenge/2013/set-a/a01','test',ann,type,subtype,chan,num)

     %Reading the file again should give the same results
    [ann,type,subtype,chan,num]=rdann('challenge/2013/set-a/a01','fqrs');
    wrann('challenge/2013/set-a/a01','test',ann,type,subtype,chan,num);
    [ann2,type2,subtype2,chan2,num2]=rdann('challenge/2013/set-a/a01','test',[],[],1);
    err=sum(ann ~= ann2)

     %Example 2
    [ann,type,subtype,chan,num]=rdann('mitdb/100','atr');
    wrann('mitdb/100','test',ann,type,subtype,chan,num);

     Written by Ikaro Silva, 2013
     Last Modified: November 4, 2014
     Version 1.4
     Since 0.0.1

     See also RDANN, RDSAMP, WFDBDESC