Re: Scipy and information theory

> Because I want to avoid long (and slow) for loops and take advantage of
numpy/ scipy element wise operations
I am embarrassed

That was an amateur mistake on my part :-(

-----Original Message-----
From: SciPy-User <[email protected]> On
Behalf Of Iyán Méndez Veiga
Sent: Sunday, November 10, 2019 7:30 AM
To: SciPy Users List <[email protected]>
Subject: Re: [SciPy-User] Scipy and information theory

El viernes, 8 de noviembre de 2019 18:13:32 (CET) Robert Lucente -
Pipeline.Com escribió:
> Why not use Python's built in fcn?
> 
> https://docs.python.org/3/library/math.html#math.log2
> 
> math.log2(x)

Because I want to avoid long (and slow) for loops and take advantage of
numpy/ scipy element wise operations. That is why I prefer numpy.log2(x)
over math.log2(x). My x is a high dimension array, not a scalar.

> This does sound like a useful feature to add to these functions. I'm 
> not sure how easy it is to add a keyword to those functions though, 
> since the ufunc machinery may be limited in flexibility. Maybe someone 
> else can say straight away. If you want to start looking into 
> implementing this, here are some notes of where to start:
> http://scipy.github.io/devdocs/dev/core-dev/index.html#scipy-special

Thanks Ralf, I'll have a look. Also waiting if someone else can say if it
would be easy or hard to implement.

Best wishes,
Iyán


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