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Re: [Changeset] Re: Single Precision versus double precision NA
From: |
David Bateman |
Subject: |
Re: [Changeset] Re: Single Precision versus double precision NA |
Date: |
Sat, 07 Jun 2008 08:07:04 +0200 |
User-agent: |
Thunderbird 2.0.0.12 (X11/20080306) |
John W. Eaton wrote:
> On 6-Jun-2008, David Bateman wrote:
>
> | No, not unless R makes a change to support the new NA value. I think the
> | change can be justified for R as well if they ever want to support
> | single precision values, and any other way to handle this issue is going
> | to be ugly (ie wrapping float/double and overloading the assignment
> | operators to trap the NA values, or some such)
>
> Since NA in Octave exists partlty for compatibility with R, then I
> think it would be best to find a way to do this so that we can still
> exchange data with R. What about always writing values in the old
> format when writing binary data, and converting them when reading?
>
Sure we can do that but before we do shouldn't we ask if R will support
single precision in the future, as if they do they'll face the same
issue? Also what file format is typically used to exchange data with R?
D.