hoa (version 2.1.2)

summary.mpl: Summary Method for `mpl' Objects

Description

Returns a summary list for objects of class mpl.

Usage

## S3 method for class 'mpl':
summary(object, correlation = FALSE, digits = NULL, \dots)

Arguments

object

a fitted mpl object, that is, the result of a call to mpl.nlreg.

correlation

logical argument. If TRUE, the (asymptotic) correlation matrix for the parameter estimates is computed; default is FALSE.

digits

the number of significant digits to be printed. Defaults to NULL.

...

absorbs any additional argument.

Value

• A list is returned with the following components:
• varPar
  the maximum adjusted profile likelihood estimates of the variance parameters.
• coefficients
  the constrained MLEs of the regression coefficients given the maximum adjusted profile likelihood estimates of the variance parameters.
• offset
  the values passed through the offset argument in the call to mpl.nlreg that generated the mpl object and to which the variance parameters were fixed.
• varParMLE
  the MLEs of the variance parameters.
• coefMLE
  the MLEs of the regression coefficients.
• varParCov
  the (asymptotic) covariance matrix of the variance parameters, that is, the corresponding block in the inverse of the observed information matrix.
• coefCov
  the (asymptotic) covariance matrix of the regression coefficients, that is, the corresponding block in the inverse of the observed information matrix.
• lmp
  the adjusted profile log likelihood from the fit.
• lp
  the profile log likelihood from the fit.
• stats
  the indicator of which higher order solution was used.
• formula
  the model formula.
• meanFun
  the formula expression of the mean function.
• varFun
  the formula expression of the variance function.
• data
  a list representing a summary of the original data with the following components. [object Object],[object Object],[object Object],[object Object],[object Object]
• nobs
  the number of observations.
• iter
  the number of interations needed for convergence; only if offset was not NULL in the call to mpl.nlreg which generated object.
• call
  an image of the call to mpl.nlreg, but with all the arguments explicitly named.
• ws
  the workspace component of the original nlreg object plus the following components: [object Object],[object Object]

Details

This function is a method for the generic function summary for class mpl. It can be invoked by calling summary for an object of the appropriate class, or directly by calling summary.mpl regardless of the class of the object.

See Also

mpl.object, nlreg.object, summary

Examples

data(metsulfuron)
metsulfuron.nl <- 
    nlreg( formula = log(area) ~ log( b1+(b2-b1) / (1+(dose/b4)^b3) ), 
           weights = ~ ( 1+dose^exp(g) )^2, data = metsulfuron, hoa = TRUE, 
           start = c(b1 = 138, b2 = 2470, b3 = 2, b4 = 0.07, g = log(0.3)) )
##
metsulfuron.mpl <- mpl( metsulfuron.nl, trace = TRUE )
summary( metsulfuron.mpl, corr = FALSE )