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...nt value, for example: Survival Males2a (t) = exp ? ((intercept + 0) * t) ^ k Survival Males2b (t) = exp ? ((intercept + zb)* t) ^ k But the curves I get using this interpretation are not similar to my data Does anyone use this function and could help me to interpret the results? many thanks Anaid

Hi, I'm a new R user, with a lot of questions. At the moment I'm stoped on an error traying to fit a model: > x <- sandeel ## numeric data (2500-60000) > y <- Noss ## numeric data (0-1.2) > A <- 0.8 > B <- 0.6 > C <- 1/40000 > nls( y ~ A-B*exp(-C*x)) Error in match.call(definition, call, expand.dots) : .Primitive... is not a function I'm

Hi I am trying to install "lme4" package, but have problems intalling matrix package. I get the following error: RGui: Rgui.exe -Unable To Locate DLL the dynamic link library Rblas could not found in the specified path C:\Program

..., method=?ML?) I have to be honest, at this point, I am just not sure of how to write the model to describe the age-specific fecundity and test the hypothesis of whether one strain shows more variance between individuals and lines or not. I hope some one could give some advise. Thanks in advance Anaid Diaz ____________________________________________________________________________________ ?Capacidad ilimitada de almacenamiento en tu correo! No te preocupes m?s por el espacio de tu cuenta con Correo Yahoo!: