Re: Should we provide a keyword than means (1/0) ?

[Hans-Bernhard B. <br...@ph...>]

Ethan Merritt wrote:
> I am surprised to find that NaN is not accepted already.
> It's acceptable in a data file.

But not reliably.  It's a feature of the systems sscanf() / strtod() 
implementation whether NaN will be accepted, and if so, which input 
string will get you this result.  Remember: there could still be 
machines out there that don't have NaNs at all.