numpy-discussion

[Numpy-discussion] Always using scientific notation to print

[Brian G. <ell...@gm...>]

I want to be able to print an array in scientific notation.

I have seen the set_printoptions() functions, but it doesn't really
have an option for *always* using scientific notation.

Can this be done?  How?

Thanks

Brian

Re: [Numpy-discussion] Always using scientific notation to print

[Robert K. <rob...@gm...>]

Brian Granger wrote:
> I want to be able to print an array in scientific notation.
> 
> I have seen the set_printoptions() functions, but it doesn't really
> have an option for *always* using scientific notation.
> 
> Can this be done?  How?

You can write a function that formats arrays how you like them and then tell 
ndarray to use it for __str__ or __repr__ using numpy.set_string_function().

-- 
Robert Kern

"I have come to believe that the whole world is an enigma, a harmless enigma
  that is made terrible by our own mad attempt to interpret it as though it had
  an underlying truth."
   -- Umberto Eco

Re: [Numpy-discussion] Always using scientific notation to print

[Brian G. <ell...@gm...>]

> You can write a function that formats arrays how you like them and then tell
> ndarray to use it for __str__ or __repr__ using numpy.set_string_function().

That seems to be a little low level for most users.  Would it be hard
to have the possibility of specifying a format string?

Brian

Re: [Numpy-discussion] Always using scientific notation to print

[Travis O. <oli...@ee...>]

Brian Granger wrote:

>>You can write a function that formats arrays how you like them and then tell
>>ndarray to use it for __str__ or __repr__ using numpy.set_string_function().
>>    
>>
>
>That seems to be a little low level for most users.  Would it be hard
>to have the possibility of specifying a format string?
>  
>
No, that woudn't be hard.  If you can wait several weeks, add a ticket, 
or better, dig in to the current printing function and add it to the 
set_printoptions code.

-Travis