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

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Rehman Tanim 2020-11-23

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/658258-undefined-function-ecg-for-input-arguments-of-type-double

评论： Rehman Tanim 2020-11-23

采纳的回答： Ameer Hamza

在 MATLAB Online 中打开

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 2020-11-23

在 MATLAB Online 中打开

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 2020-11-23

load Hd;

>> whos

Name Size Bytes Class Attributes

Hd 1x1 dfilt.df2sos

i think no

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采纳的回答

Ameer Hamza 2020-11-23

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/658258-undefined-function-ecg-for-input-arguments-of-type-double#answer_552903

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 2020-11-23

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

Rehman Tanim 2020-11-23

Done

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