R help - Oct 2006 - nested design; intercept

Dear R-help,

I am sorry if this is more of a stats question than an R-question, but I have
found it difficult to get a clear answer by other means.

Q. Would it be "wrong" to specify a nested model and retain a common
intercept, e.g.

lm(NH4 ~ Site/TideCode + 1)

I am aware (?) that my Site-coefficients are now calculated relative to my
reference Site  (treatment.contrasts), *but* that my TideCode levels now relate
to their reference level within Site.

Is that correct?

Thank you in advance for help.

Regards,
Mark Difford.

  
Mark Difford 
Ph.D. candidate, Botany Department, 
Nelson Mandela Metropolitan University, 
Port Elizabeth, SA.

Hi All,

I am struggling in a bivariate Weibull distribution although I searched
R-Site-Help and found suggestion with Copula. Seems the maximum likelihood
estimate is beyond what I can understand.

My case is: given two known marginal distribution (both are Weibull), and the
correlation between them. How can I get the bivariate distribution based on
these two? I wish if there is anybody has the experience in bivariate
distribution could give me the hints. Thanks!

Jen.

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