Hi, the problem is what you want!
With the -2.7^8.6 you are doing -(2.7^8.6) it exists... But, if you try (-2.7)^8.6 the R gives you NaN. When you define p=-2.7 and q=8.6 and do p^q you are doing that (-2.7)^8.6. If you write p=2.7 and q=8.6 and use the -p^q it will work! Leandro Marino www.leandromarino.com.br -----Mensagem original----- De: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] nome de Dirk Eddelbuettel Enviada em: terca-feira, 1 de julho de 2008 15:19 Para: [EMAIL PROTECTED] Cc: r-help@r-project.org Assunto: Re: [R] WIERD: Basic computing in R On Tue, Jul 01, 2008 at 11:15:58AM -0700, [EMAIL PROTECTED] wrote: > Can someone please enlighten me as to why the following happens? > > -2.7^8.6 > [1] -5125.407 > > > p<- -2.7 > > q<- 8.6 > > p^q > [1] NaN > R seems perfectly able to calculate -2.7^8.6, but fails when the exact same values are assigned to variables and then the computation is repeated. > Thanks in advance for any suggetsions. Try -(p^q) Dirk -- Three out of two people have difficulties with fractions. ______________________________________________ R-help@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. ______________________________________________ R-help@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.
