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Undefined function 'ecg' for input arguments of type 'double'.

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Rehman Tanim
Rehman Tanim on 23 Nov 2020
Commented: Rehman Tanim on 23 Nov 2020
x1 = 3.5*ecg(2700).'; % gen synth ECG signal // Error in this line
y1 = sgolayfilt(kron(ones(1,ceil(NumSamp/2700)+1),x1),0,21); % repeat for NumSamp length and smooth
n = 1:Time*Fs';
del = round(2700*rand(1)); % pick a random offset
mhb = y1(n + del)'; %construct the ecg signal from some offset
t = 1/Fs:1/Fs:Time';
subplot(3,3,1); plot(t,mhb);
axis([0 2 -4 4]);
grid;
xlabel('Time [sec]');
ylabel('Voltage [mV]');
title('Maternal Heartbeat Signal');
IN THE BOLD LINE IT SHOWS THIS ERROR ,IT WOULD BE A GREAT HELP FOR ME.
PLEASE HELP

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KSSV
KSSV on 23 Nov 2020
What does this file have?
load Hd;
Check does it have a variable ECG. See what
whos
gives. Does it have ECg variable.
Rehman Tanim
Rehman Tanim on 23 Nov 2020
load Hd;
>> whos
Name Size Bytes Class Attributes
Hd 1x1 dfilt.df2sos
i think no

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Accepted Answer

Ameer Hamza
Ameer Hamza on 23 Nov 2020
ecg() is not a MATLAB's built-in function. You need to ask the author of the code to give you this function.

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Image Analyst
Image Analyst on 23 Nov 2020
Rehman, can you please click the link to "Accept this answer" to give Ameer credit (reputation points) for helping you? Thanks in advance.

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