## File: gcv.l1ce.Rd

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r-cran-lasso2 1.2-20-1
 123456789101112131415161718192021222324252627282930313233343536373839404142 % Copyright (C) 1998 % Berwin A. Turlach % Bill Venables % $Id: gcv.l1ce.d,v 1.4 1999/12/01 05:10:52 bturlach Exp$ % --> ../COPYRIGHT for more details \name{gcv.l1ce} \alias{gcv.l1ce} \alias{gcv.l1celist} \title{gcv()' Methods for l1ce' and l1celist' Objects.} \usage{ \method{gcv}{l1ce}(object, type = c("OPT", "Tibshirani"), gen.inverse.diag = 0, \dots) \method{gcv}{l1celist}(object, type = c("OPT", "Tibshirani"), gen.inverse.diag = 0, \dots) } \arguments{ \item{object}{an object of class \code{l1ce} or \code{l1celist}.} \item{type}{character (string) indicating whether to use the covariance formula of Osborne, Presnell and Turlach or the formula of Tibshirani.} \item{gen.inverse.diag}{ if Tibshirani's formula for the covariance matrix is used, this value is used for the diagonal elements of the generalised inverse that appears in the formula that corresponds to parameters estimated to be zero. The default is 0, i.e. use the Moore-Penrose inverse. Tibshirani's code uses \code{gen.inverse.diag = 1e11}.} \item{\dots}{further potential arguments passed to methods.} } \description{ This is a method for the function \code{gcv()} for objects inheriting from class \code{l1ce} or \code{l1celist}. } \seealso{ \code{\link{gcv}} for the general behavior of this function; \code{\link{l1ce.object}} and \code{\link{l1celist.object}} for description of the \code{object} argument. } \details{ See documentation. } \keyword{models} % Converted by Sd2Rd version 1.21. `