[Numpy-discussion] Initialization of array?

[Daehyok Shin]

Comparing the performance,
resize() seems to be more effient than ones().

Daehyok Shin

----- Original Message ----- 
From: "Chris Barker" <cbarker at jps.net>
Cc: <numpy-discussion at lists.sourceforge.net>
Sent: Wednesday, November 29, 2000 11:13 AM
Subject: Re: [Numpy-discussion] Initialization of array?


> Daehyok Shin wrote:
> > When I initialize an array, I use
> > a = ones(shape)*initial_val
> > 
> > But, I am wondering if Numpy has more efficient way.
> > For example,
> > a = array(initial_value, shape)
> 
> I don't know if it's any more efficient (what you have is pretty fast
> already), but another option is to use resize:
> 
> >>> shape = (3,4)
> 
> >>> initial_val = 5.0
> 
> >>> resize(initial_val,shape)
> 
> array([[ 5.,  5.,  5.,  5.],
>        [ 5.,  5.,  5.,  5.],
>        [ 5.,  5.,  5.,  5.]])
> >>>           
> 
> -Chris
> 
> 
> -- 
> Christopher Barker,
> Ph.D.                                                           
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