The R Project SVN R

Rev

Rev 88585 | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 88585 Rev 89373
Line 1... Line 1...
1 
% File src/library/stats/man/lm.influence.Rd
 1 
% File src/library/stats/man/lm.influence.Rd
2 
% Part of the R package, https://www.R-project.org
 2 
% Part of the R package, https://www.R-project.org
3 
% Copyright 1995-2024 R Core Team
 3 
% Copyright 1995-2026 R Core Team
4 
% Distributed under GPL 2 or later
 4 
% Distributed under GPL 2 or later
5 
 
 5 
 
6 
\name{lm.influence}
 6 
\name{lm.influence}
7 
\title{Regression Diagnostics}
 7 
\title{Regression Diagnostics}
8 
\alias{lm.influence}
 8 
\alias{lm.influence}
Line 68... Line 68...
68 
    that aliased coefficients are not included in the matrix.}
 68 
    that aliased coefficients are not included in the matrix.}
69 
  \item{sigma}{a vector whose i-th element contains the estimate
 69 
  \item{sigma}{a vector whose i-th element contains the estimate
70 
    of the residual standard deviation obtained when the i-th
 70 
    of the residual standard deviation obtained when the i-th
71 
    case is dropped from the regression.  (The approximations needed for
 71 
    case is dropped from the regression.  (The approximations needed for
72 
    GLMs can result in this being \code{NaN}.)}
 72 
    GLMs can result in this being \code{NaN}.)}
73 
  \item{wt.res}{a vector of \emph{weighted} (or for class \code{glm}
 73 
  \item{wt.res}{a vector of \emph{weighted} residuals.}
74 
    rather \emph{deviance}) residuals.}
 - 
 
75 
 
 74 
 
76 
  \code{qr.influence()} returns list with the two components \code{hat} and
 75 
  \code{qr.influence()} returns list with the two components \code{hat} and
77 
  \code{sigma}, as above but without \code{\link{names}}.
 76 
  \code{sigma}, as above but without \code{\link{names}}.
78 
}
 77 
}
79 
\note{
 78 
\note{
Line 89... Line 88...
89 
  to the situation in S).
 88 
  to the situation in S).
90 
 
 89 
 
91 
  If a model has been fitted with \code{na.action = na.exclude} (see
 90 
  If a model has been fitted with \code{na.action = na.exclude} (see
92 
  \code{\link{na.exclude}}), cases excluded in the fit \emph{are}
 91 
  \code{\link{na.exclude}}), cases excluded in the fit \emph{are}
93 
  considered here.
 92 
  considered here.
- 
 
 93 
 
- 
 
 94 
  These functions call \code{\link{weighted.residuals}()} so it is
- 
 
 95 
  assumed that the methods for \code{residuals()} and \code{weights()}
- 
 
 96 
  accept \code{type="working"}.
94 
}
 97 
}
95 
\references{
 98 
\references{
96 
  See the list in the documentation for \code{\link{influence.measures}}.
 99 
  See the list in the documentation for \code{\link{influence.measures}}.
97 
 
 100 
 
98 
  \bibshow{R:Chambers:1992:c4}}
 101 
  \bibshow{R:Chambers:1992:c4}}