Displaying 3 results from an estimated 3 matches for "uncons".
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2010 Oct 15
2
How to extract parameter estimates of variance function from lme fit
Dear R-Users,
I have a question concerning extraction of parameter estimates of
variance function from lme fit.
To fit my simulated data, we use varConstPower ( constant plus power
variance function).
fm<-lme(UPDRS~time,data=data.simula,random=~time,method="ML",weights=varConstPower(fixed=list(power=1)))
I extract the results of this function by using the following codes:
2011 Jun 01
3
error in model specification for cfa with lavaan-package
Dear R-List,
(I am not sure whether this list is the right place for my question...)
I have a dataframe df.cfa
2004 Oct 03
1
creating new varFunc classes in nlme .. error: "Don't know how to get coefficients for .. object"
...itialize.varExp2
all seem to work properly after I construct them. I
can successfully use the commands:
v2 <- varExp2(form = ~age|Sex,fixed = c(Female=0))
v2 <- Initialize(v2, Orthodont)
But, after this when I type "v2" at the prompt, I get
the message:
Error in coef.varFunc(x, uncons = FALSE, allCoef =
TRUE) : Don't know how to get coefficients for varExp2
object
Im not sure what to do. Im sure it is a simple fix or
statement I need to enter. Can anyone offer
suggestions? Do I have to use the command
varFunc(varExp2) at some point?
As background, I created VarExp2 by u...