Re: [Matplotlib-users] writing binary array to file

[Eugeni D. <dol...@rs...>]

----- Original Message ----- 
From: "Perry Greenfield" <pe...@st...>
To: "John Hunter" <jdh...@ni...>; "Randy Heiland"
<he...@in...>
Cc: <mat...@li...>
Sent: Thursday, April 08, 2004 10:47 PM
Subject: RE: [Matplotlib-users] writing binary array to file


> John Hunter wrote:
> > Best is to use the binary string operations tostring and fromstring
> >
> >     from Numeric import fromstring, Float
> >     # write
> >     file('fname.out', 'wb').write(x.tostring())
> >
> >     # read
> >     x = fromstring(file('fname.out', 'rb').read(), Float)
> >
> >     #If data is MxN you'll need to reshape
> >     x.shape = M,N
> >
> > Hope this help,
> > JDH
> >
>
> Note that numarray has a tofile method and a fromfile function
> to do this without going through the copying required by tostring
> and fromstring. Like those, it also doesn't save any shape or
Moreover tostring() and fromstring() are deprecated iirc, because you can
convert arrays from and to strings by StringIO.
> type info in the file.
>
> Perry
>
>
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