[signal,Fs,tm]=rdsamp('08455'); %recording name have 2 leads
sig = signal(:,1); %we will wok on the first one
s= 9205760; %samples
fs = 250; %sample rate
t = floor(s/ts); %time for the recording
t_i = 0.8; %initial time for the inteval 2/3 of first 1.2 s
i = floor(t/6); %nr of signals
for j =1:i
t_f = t_i +6; %final time for the interval
m(s,j) = sig((t_i*fs):(t_f*fs)); %I wanted to get every signal in a matrice in which every column will be a signal
t_i = (t_f*ts +1)/ts; %initial time for further intervals
end
Kshitij Singh answered . 2024-05-17 20:19:34
% demo code
n=100;
x=(1:n)/n;
y= 0.5 + sin(20*x)+ 0.02*randn(1,n);
threshold = 1; %
[ind_pos,t0_pos,s0_pos,ind_neg,t0_neg,s0_neg]= crossing_V7(y,x,threshold,'linear'); % positive slope zero crossing points
plot(x,y,'b',t0_pos,s0_pos,'+r',t0_neg,s0_neg,'+g','linewidth',2,'markersize',12);grid
legend('signal','positive slope crossing points','negative slope crossing points');
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