PhysioNet/CinC 2004 Challenge - Event A

For further details please see the following paper in the Proceedings of Computers in Cardiology 2004:

"Predicting the end of an Atrial Fibrillation Episode: The PhysioNet Challenge"
F. Cantini (1), F. Conforti (1), M. Varanini (1), F. Chiarugi (2), G. Vrouchos (3)

(1) CNR, Institute of Clinical Physiology, Pisa, Italy
(2) ICS-FORTH, Heraklion, Crete, Greece
(3) ICU-CCU Departement, Venizeleio-Pananeio Hospital, Heraklion, Crete, Greece

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These programs are free software; you can redistribute them and/or modify them under the terms
of the GNU General Public License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
You can find the GNU General Public Licence in the site http://www.gnu.org/copyleft/gpl.html or
in the file "GNU GENERAL PUBLIC LICENSE.pdf" attached to this package.

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Start "Matlab" (Signal processing Toolbox is required) environment and execute 
"eventA.m" to elaborate the whole aftdb database.


Input parameters:
mainPath_in 	-> Atrial fibrillation database main directory
                  (example: '..\..\www.physionet.org\physiobank\database\aftdb')
mainPath	-> Main data directory
                  (example: '..\..\')

The "eventA.m" procedure executes the following routines:
- "QrsAvgCancelAll.m"       
    ("QrsAvgCancelTestClPcan.m": QRST canceling)
- "StftSpettriMedianAll.m"
    ("StftSpettriMedian.m": spectrum estimation)
- "ResultTest.m"
    (classification)
- - -
Input files:
mainPath_in\caseDir\cname.dat
where: "caseDir" is one of the following: "learning-set", "test-set-a", "test-set-b";
       "cname" the name of one case
(example: '..\..\www.physionet.org\physiobank\database\aftdb\learning-set\n01.dat')

Output files of "QrsAvgCancelTestClPcan.m" routine:
 directory mainPath\DatiQc\caseDir    (example: '..\..\DatiQc\learning-set')
   'cname.dat' containing signals after QRST canceling
      (example: '..\..\DatiQc\learning-set\n01.dat')
   'cname.mat' containing some parameters (RR interval series, the mean RR, ...)
      (example: '..\..\DatiQc\learning-set\n01.mat')

Output files of "StftSpettriMedian.m" routine:
 directory mainPath\DatiQc\caseDir\SptRes
       (example: '..\..\DatiQc\learning-set\SptRes')
   'cname.mat' containing the parameters of the previuos parameter file (cname.mat) 
               updated with spectral measures: 'fPmaxb', 'Pdmaxb'
 directory mainPath\DatiQc\caseDir\SptRes\figure
       (example: '..\..\DatiQc\learning-set\SptRes\figure')
   'cname.jpg' containing the figure of Power Density Spectrum

Output files of "ResultTest.m" routine:
 directory mainPath\DatiQc
       (example: '..\..\DatiQc')
   'ResultTab.txt' containing the classification results of all the cases 
                   of all the set.