Unzip throws ZIP file not found error in "Classify ECG Signals Using LSTM Networks Example"

Looking at the example from the documentation "Classify ECG Signals Using LSTM Networks Example",

I get the following error when I run "ReadPhysionetData" from the "ClassifyECGSignalsUsingLSTMNetworksExample.mlx" deep learning example.

Error using checkfilename>validateFilename (line 165)

Function UNZIP was unable to find file ''/physionet.org/challenge/2017/training2017.zip''.

Error in checkfilename (line 49)

[fullfilename, fid] = validateFilename( ...

Error in parseUnArchiveInputs (line 81)

[archiveFilename, url] = checkfilename(archiveFilename, validExtensions, ...

Error in unzip (line 57)

[zipFilename, outputDir, url, urlFilename] = parseUnArchiveInputs( ...

Answer 1

[MathWorks Support Team]

In MATLAB versions after R2017b and before R2019b Update 2, it is likely that the URL for the location of the data set is outdated or incorrect.

Link : <https://physionet.org/challenge/2017/training2017.zip>

should be updated to

https://archive.physionet.org/challenge/2017/training2017.zip

Please replace the URL in the file "ReadPhysionetData.m" on line 8:

unzip('https://physionet.org/challenge/2017/training2017.zip')

with the archive link:

unzip('https://archive.physionet.org/challenge/2017/training2017.zip')