[R] Optimization package

Paul Hiemstra paul.hiemstra at knmi.nl
Thu Sep 15 12:10:18 CEST 2011


 On 09/14/2011 10:37 PM, Diviya Smith wrote:
> Hi there,
>
> I have a complex math equation which does not have a closed form solution.
> It is -
>
> y <- (p*exp(-a*d)*(1-exp((d-p)*(a-x[1]))))/((p-d)*(1-exp(-p*(a-x[1]))))
>
> For this equation, I have all the values except for x[1]. So I need to solve
> this problem numerically. Can anyone suggest an optimization package that I
> can use to estimate the value for x[1]?
>
> Thanks in advance,
>
> Diviya
>
> 	[[alternative HTML version deleted]]
>
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.

Google for "R optimization".

Paul

-- 
Paul Hiemstra, Ph.D.
Global Climate Division
Royal Netherlands Meteorological Institute (KNMI)
Wilhelminalaan 10 | 3732 GK | De Bilt | Kamer B 3.39
P.O. Box 201 | 3730 AE | De Bilt
tel: +31 30 2206 494

http://intamap.geo.uu.nl/~paul
http://nl.linkedin.com/pub/paul-hiemstra/20/30b/770



More information about the R-help mailing list