| % File src/library/stats4/man/update-methods.Rd |
| % Part of the R package, https://www.R-project.org |
| % Copyright 1995-2007 R Core Team |
| % Distributed under GPL 2 or later |
| |
| \name{update-methods} |
| \docType{methods} |
| \alias{update-methods} |
| \alias{update,ANY-method} |
| \alias{update,mle-method} |
| \title{Methods for Function \code{update} in Package \pkg{stats4}} |
| \description{ |
| Update \code{"mle"} objects. |
| } |
| \usage{ |
| \S4method{update}{mle}(object, \dots, evaluate = TRUE) |
| } |
| \arguments{ |
| \item{object}{An existing fit.} |
| \item{\dots}{Additional arguments to the call, or arguments with |
| changed values. Use \code{name = NULL} to remove the argument \code{name}.} |
| \item{evaluate}{If true evaluate the new call else return the call.} |
| } |
| \section{Methods}{ |
| \describe{ |
| \item{\code{signature(object = "ANY")}}{Generic function: see |
| \code{\link[stats]{update}}.} |
| \item{\code{signature(object = "mle")}}{Update a fit.} |
| } |
| } |
| \examples{ |
| x <- 0:10 |
| y <- c(26, 17, 13, 12, 20, 5, 9, 8, 5, 4, 8) |
| ll <- function(ymax = 15, xhalf = 6) |
| -sum(stats::dpois(y, lambda = ymax/(1+x/xhalf), log = TRUE)) |
| fit <- mle(ll) |
| ## note the recorded call contains ..1, a problem with S4 dispatch |
| update(fit, fixed = list(xhalf = 3)) |
| } |
| \keyword{methods} |