MATLAB: The old version of CWT code is no longer recommended [Continuous Wavelet Transform]

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Hi Everyone!!
My name is Supatat, Now I am doing research about detecting aburpt transition of roll angular velocity of rail vehicle using continuous wavelet transform.
I have used old and new version of cwt code as below.
Newer version:
https://www.mathworks.com/help/wavelet/ref/cwt.html
Older version:
https://www.mathworks.com/help/wavelet/ref/cwtold.html
However, it is stated that the older version is no longer recommended on its webpage.
I would like to know the reason why it is no longer recommended. Does it mean " the result from the old version of cwt code is always incorrect"?
Because I got the different results from old and new version of cwt code. I am confused which one is correct.
Could you please answer me?
Thank you very much for your help in advacne

Best Answer

This article might be helpful.
It mentions the advantages of using the new CWT() compared with the old one.
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