Displaying 3 results from an estimated 3 matches for "pineiro".
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pinheiro
2001 May 31
1
nlme and memory
I am trying to follow an example in Pineiro & Bates's book
library(nlme)
data(Soybean)
soy.lis<-nlsList(weight~SSlogis(Time,Asym,xmid,scal),data=Soybean)
soy.nlme<-nlme(soy.lis)
Error: Calloc could not allocate (151974496 of 8) memory
This is not a large problem-- only 412 observations. I am using R-1.2.3
with automatic memor...
2009 Apr 01
1
lme between-group and within-group covariance
Dear R users,
I would be interested in using the lme() function to fit a linear mixed
model to a longitudinal dataset. I know this function allows for the
specification of a within-group covariance structure. However, does it allow
for the explicit specification of a between-group covariance structure?
Being able to specify both separately would be very important in the context
of my project
2006 Oct 05
4
glm with nesting
I just had a manuscript returned with the biggest problem being the
analysis. Instead of using principal components in a regression I've
been asked to analyze a few variables separately. So that's what I'm
doing.
I pulled a feather from young birds and we quantified certain aspects of
the color of those feathers. Since I often have more than one sample
from a nest, I thought I