The files in this directory illustrate ECGSYN output obtained using its default settings. The files ecgsyn.dat and rr.dat are created by ECGSYN itself.

ecgsyn.dat is a text file, which contains three columns:

the time in seconds
the ECG amplitude in millivolts
markers to indicate the locations of the waveform peaks:

0 (no peak)

1 Top of P-wave

2 Q-point

3 Peak of R-wave

4 S-point

5 Peak of T-wave

rr.dat is also a text file, containing (in one column) a series of inter-beat (RR) intervals in seconds.

The files syn.hea and syn.dat are PhysioBank (WFDB) format header and signal files created from the ECGSYN output by:

    wrsamp -F 256 -o syn -x 200 1 <ecgsyn.dat

These files can be read using any of the available WFDB applications.

The file ecgsyn.png (shown below) was created from the first 4.5 seconds of ecgsyn.dat, using plt:

     plt ecgsyn.dat 0 1 -xa 0 4.5 -t "ECGSYN output" \
       -x "Time (s)" -y "ECG Amplitude (mV)" -T lw | \
     lwcat -png >ecgsyn.png

0	(no peak)
1	Top of P-wave
2	Q-point
3	Peak of R-wave
4	S-point
5	Peak of T-wave