as.data.frame.profile.mle2

convert profile to data frame

converts a profile of a fitted mle2 object to a data frame

Usage

# S3 method for profile.mle2
as.data.frame(x, row.names=NULL,
optional=FALSE, …)

Aliases

• as.data.frame.profile.mle2
• coerce,profile.mle2-method
• coerce,profile.mle2,data.frame-method

Examples

# NOT RUN {
  ## use as.data.frame and lattice to plot profiles
  x <- 0:10
  y <- c(26, 17, 13, 12, 20, 5, 9, 8, 5, 4, 8)
  library(bbmle)
  LL <- function(ymax=15, xhalf=6) {
        -sum(stats::dpois(y, lambda=ymax/(1+x/xhalf), log=TRUE))
    }
  ## uses default parameters of LL
  fit1 <- mle2(LL)
  p1 <- profile(fit1)
  d1 <- as.data.frame(p1)
  library(lattice)
  xyplot(abs(z)~focal|param,data=d1,
    subset=abs(z)<3,
    type="b",
    xlab="",
    ylab=expression(paste(abs(z),
    " (square root of ",Delta," deviance)")),
    scale=list(x=list(relation="free")))
# }