EMD giving me error: "ERROR : number of arguments should be as 5"

I am using Matlab 2018b.

I have a variable b2f with is a time-series. Its size is 1x7200. I am trying to use EMD as:

[imf,residual,info] = emd(b2f);

But I am getting the following error message: "ERROR : number of arguments should be as 5". I have Googled it already but I can't find out what the issue is. Does anyone know what I'm doing wrong?

Thanks!

Answer 1

[Harsha Priya Daggubati]

Hi,

The input argument to 'emd' method should be uniformly sampled time-domain signal, specified as either a vector or single data column timetable. I guess the issue might be with the class of b2f variable as you mentioned it is a time-series object.

Hope this helps!

[Wenkang]

I tried to run the demo code and it also failed.

>> load('sinusoidalSignalExampleData.mat','X','fs');

t = (0:length(X)-1)/fs;

plot(t,X);

xlabel('Time(s)');

>> [imf,residual,info] = emd(X,'Interpolation','pchip');

Error using emd

ERROR : number of arguments should be as 5

my version is 9.4.0.813654 (R2018a)

This issue can be solved by copying the original emd.m file to another folder and rename it. Dont know why but it works.