[Mne_analysis] Badly resample signal

RODNEY PETRUS BALANDONG rodney.petrus_g03291 at utp.edu.my
Thu Aug 22 00:01:53 EDT 2019
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Dear All,

The issue is about sample badly approximated

Given an original signal sampled at 100Hz, the objective was to downsampled it into 50 Hz
The downsampling process was realised using the MNE resample.

However, as can be noticed from the image below, the sample is badly approximated. Instead of registering the original signal magnitude, the function RESAMPLE return an approximated signal magnitude.

This rise two question

  1.  Is it common for such badly resample to occur?
  2.  If yes, how to minimize this

The problem can be reproduced using the notebook which is accessible through this link<https://github.com/balandongiv/EyeCloseOpen/blob/master/HelpImportDownsample_EDF.ipynb>.

Thanks in advance for entertaining this request


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Regards
Rodney
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