profile.mle2-class {bbmle} | R Documentation |
Likelihood profiles along each parameter of likelihood function
Objects can be created by calls of the form new("profile.mle2",
...)
, but most often by invoking profile
on an "mle2" object.
profile
:"list"
. List of
profiles, one for each requested parameter. Each profile is a data
frame with the first column called z
being the signed square
root of the deviance, and the others being the
parameters with names prefixed by par.vals.
summary
:"summary.mle2"
. Summary
of object being profiled.signature(object = "profile.mle2")
: Use profile
to generate approximate confidence intervals for parameters.signature(x = "profile.mle2", y = "missing")
: Plot
profiles for each parameter.signature(x = "profile.mle2")
: Plot
profiles for each parameter.signature(object = "profile.mle2")
: Show object.
mle2
, mle2-class
, summary.mle2-class
x <- 0:10 y <- c(26, 17, 13, 12, 20, 5, 9, 8, 5, 4, 8) fit1 <- mle2(y~dpois(lambda=ymax/(1+x/xhalf)),start=list(ymax=1,xhalf=1), method="L-BFGS-B",lower=c(ymax=0.001,xhalf=0.001)) p1 <- profile(fit1) plot(p1,main=c("first","second"), xlab=c(~y[max],~x[1/2]),ylab="Signed square root deviance")