search for: pinh

Displaying 5 results from an estimated 5 matches for "pinh".

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2001 Sep 08
1
multiple fitted curves plot
Dear Rusers, How would I plot several (24) fitted curves (nonlinear least squares) within a single plot? To get the parameters I use: resff <- list() for (s in levels(PairID)) { resff[[s]] <- nls(Photo ~ SSasymp(Ci, Asym, lrc, c0), subset = (PairID == s)) } Is it also possible to plot two different groups (male, female) of curves in the same plot, with different style lines?
1997 Dec 02
1
R-alpha: NextMethod in 0.50-a4
...culiar message about not being able to find the function print.groupedData which happens to be the function that is currently being evaluated. I tried different forms of the call to NextMethod but to no avail. The purpose and design of the groupedData class is described in @InProceedings{ bate:pinh:1997, author = {Douglas M. Bates and Jos\'{e} C. Pinheiro}, title = {Software Design for Longitudinal Data}, editor = {Timothy G. Gregoire}, booktitle = {Modelling Longitudinal and Spatially Correlated Data: Methods, Applications and Future Directions}, year = 1997, address =...
2001 Aug 17
1
lme: Specifying a formula
Dear list, I am faced with the following model: y=E+P+M+H+PxE+Error y is a response, E and P are factors with fixed effects. M is a random effect nested in P and H is a random effect nested in M. PxE is interaction of P and E. It seems that I should fit such a model with the lme function of library nlme, but I was not able to figure out from the help page how to specify the formula. In the
2001 Jun 06
3
HLM-like analysis in R
Greetings- I have some data on which I need to do something like a Hierarchical Linear Model (please bear with me, I'm only learning the technique so I don't know yet if my language is correct). Essentially I'm analyzing data at two levels simultaneously; data are about individuals an organizations of which they are members. Can someone point me toward an appropriate package in R?
2001 Mar 28
4
fitting growth curves
Dear R-list members, Cynthia M. Jones wrote a paper (Fitting growth curves to retrospective size-at-age data, Fisheries Research 46(2000):123-129; abstract at http://www.elsevier.nl/gej-ng/10/19/44/70/24/37/abstract.html)where the SAS procedure MIXED, Macro NLINMIX (Littell et. al., 1996)was used to estimate the von Bertalanffy growth function parameters assuming that data from the same fish are