SINGHAVANI
Newbie level 1
Code vb.net - [expand] 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 clear; system('rdsamp -r e0801 -f 17.3 -l 10.0 -p > e0801.txt'); % jump 17.3 seconds, read 10 seconds [t,y(:,1),y(:,2)] = textread('e0801.txt','%f %f %f'); % read time and voltages from file fs = 1 / (t(2) - t(1)); % sample rate, hertz period = 0.96; % cardiac period, seconds N = length(y); t = (0 : N-1) / fs; for n = 1:2 % for each voltage waveform subplot(4,1,n*2-1); plot(t,y(:,n)); xlim([0 max(t)]); title('Input Data','FontWeight','bold'); xlabel('Seconds'); ylabel('Millivolts'); xlim1 = xlim; ylim1 = ylim; % remember plot limits % % Subtract baseline drift. See [url]https://www.dataq.com/applicat/articles/an14.htm[/url] z(:,n) = y(:,n) - smooth(y(:,n),round(fs*period)); subplot(4,1,n*2-0); plot(t,z(:,n)); xlim([0 max(t)]); title('Subtract Baseline Drift','FontWeight','bold'); xlabel('Seconds'); ylabel('Millivolts'); xlim(xlim1); end;
for above code getting this error
init: can't open header for record e0801
Attempted to access t(2); index out of bounds because numel(t)=0.
Error in ecgdat (line 4)
fs = 1 / (t(2) - t(1)); % sample rate, hertz
plz help
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