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Re: NaN problem in integer arrays [message #86214 is a reply to message #86206]

Thu, 17 October 2013 13:51

Kenneth Bowman
Messages: 86
Registered: November 2006

Member

On 2013-10-17 15:44:46 +0000, Galaxytraveler said:

> I use NaN's a lot in my arrays in place of missing or bad data points,
> but I have problems with it everytime my arrays are integer.

NaNs are identified by a special bit pattern in the IEEE floating point
standard (http://en.wikipedia.org/wiki/IEEE_floating_point). There is
no such thing as NaN for integer data types. If you need to implement
a similar concept for integers, you have to choose a specific integer
value to represent, for example, missing data, and then you have to
assume all responsibility for checking for that value.

Ken Bowman

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[Message index]

		NaN problem in integer arrays By: galaxytraveler42 on Thu, 17 October 2013 08:44
		Re: NaN problem in integer arrays By: David Fanning on Thu, 17 October 2013 08:50
		Re: NaN problem in integer arrays By: Kenneth Bowman on Thu, 17 October 2013 13:51

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