Methods for Function update in Package stats4

Description

Update "mle" objects.

Usage

## S4 method for signature 'mle'
update(object, ..., evaluate = TRUE)

Arguments

Methods

signature(object = "ANY")

Generic function: see update.

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))

Results

R version 3.3.1 (2016-06-21) -- "Bug in Your Hair"
Copyright (C) 2016 The R Foundation for Statistical Computing
Platform: x86_64-pc-linux-gnu (64-bit)

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> library(stats4)
> png(filename="/home/ddbj/snapshot/RGM3/R_rel/result/stats4/update-methods.Rd_%03d_medium.png", width=480, height=480)
> ### Name: update-methods
> ### Title: Methods for Function 'update' in Package 'stats4'
> ### Aliases: update-methods update,ANY-method update,mle-method
> ### Keywords: methods
> 
> ### ** 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)
Warning message:
In stats::dpois(y, lambda = ymax/(1 + x/xhalf), log = TRUE) : NaNs produced
> ## note the recorded call contains ..1, a problem with S4 dispatch
> update(fit, fixed = list(xhalf = 3))

Call:
mle(minuslogl = ll, fixed = ..1)

Coefficients:
    ymax    xhalf 
25.19609  3.00000 
> 
> 
> 
> 
> 
> dev.off()
null device 
          1 
>