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Re: Regression with NaN's [message #68835]

Wed, 25 November 2009 07:01

d.poreh
Messages: 406
Registered: October 2007

Senior Member

On 25 Nov., 06:50, Paolo <pgri...@gmail.com> wrote:
> If you take the logarithm of a negative number, NaN is about
> as good an answer as you can hope for :)
>
> You shouldn't really throw away your data just because it's negative,
> but if you insist that you don't want those, just remove the negatives
> before calling log and you'll be all set.
>
> However, if I were the referee of your paper and you would describe
> that you just throw away negative data I would be very critical of
> that -
> might as well take away all your data and do theory instead, no? ;)
>
> Ciao,
> Paolo
>
> On Nov 25, 9:10 am, Dave_Poreh <d.po...@gmail.com> wrote:
>
>
>
>> Folks
>> I want to do some regression on my data. In my data there is an ALOG
>> function that makes my data somewhere (which I don’t know where) as
>> NaN’ss. I just want to do regression (with regress or linfit) without
>> these NaN’s.
>> Any help highly would be appreciated
>> Cheers

Good point.
Cheers

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		Re: Regression with NaN's By: d.poreh on Wed, 25 November 2009 07:01
		Re: Regression with NaN's By: pgrigis on Wed, 25 November 2009 06:50

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