parnames

0th

Percentile

get and set parameter names

Gets and sets the "parnames" attribute on a negative log-likelihood function

Keywords
misc
Usage
parnames(obj)
parnames(obj) <- value
Arguments
obj

a negative log-likelihood function

value

a character vector of parameter names

Details

The parnames attribute is used by mle2() when the negative log-likelihood function takes a parameter vector, rather than a list of parameters; this allows users to use the same objective function for optim() and mle2()

Value

Returns the parnames attribute (a character vector of parameter names) or sets it.

Aliases
  • parnames
  • parnames<-
Examples
# NOT RUN {
x <- 1:5
set.seed(1001)
y <- rbinom(5,prob=x/(1+x),size=10)
mfun <- function(p) {
  a <- p[1]
  b <- p[2]
  -sum(dbinom(y,prob=a*x/(b+x),size=10,log=TRUE))
}
optim(fn=mfun,par=c(1,1))
parnames(mfun) <- c("a","b")
mle2(minuslogl=mfun,start=c(a=1,b=1),method="Nelder-Mead")
# }
Documentation reproduced from package bbmle, version 1.0.23.1, License: GPL

Community examples

Looks like there are no examples yet.