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% File src/library/stats/man/predict.lm.Rd
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% File src/library/stats/man/predict.lm.Rd
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% Part of the R package, http://www.R-project.org
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% Part of the R package, http://www.R-project.org
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% Copyright 1995-2012 R Core Team
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% Copyright 1995-2013 R Core Team
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% Distributed under GPL 2 or later
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% Distributed under GPL 2 or later
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\name{predict.lm}
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\name{predict.lm}
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\title{Predict method for Linear Model Fits}
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\title{Predict method for Linear Model Fits}
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\alias{predict.lm}
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\alias{predict.lm}
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  default is to assume constant prediction variance, with a warning.
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  default is to assume constant prediction variance, with a warning.
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}
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}
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\value{
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\value{
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  \code{predict.lm} produces a vector of predictions or a matrix of
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  \code{predict.lm} produces a vector of predictions or a matrix of
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  predictions and bounds with column names \code{fit}, \code{lwr}, and
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  predictions and bounds with column names \code{fit}, \code{lwr}, and
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  \code{upr} if \code{interval} is set.  If \code{se.fit} is
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  \code{upr} if \code{interval} is set.  For \code{type = "terms"} this
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  is a matrix with a column per term and may have an attribute
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  \code{"constant"}.
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  If \code{se.fit} is
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  \code{TRUE}, a list with the following components is returned:
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  \code{TRUE}, a list with the following components is returned:
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  \item{fit}{vector or matrix as above}
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  \item{fit}{vector or matrix as above}
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  \item{se.fit}{standard error of predicted means}
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  \item{se.fit}{standard error of predicted means}
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  \item{residual.scale}{residual standard deviations}
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  \item{residual.scale}{residual standard deviations}
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  \item{df}{degrees of freedom for residual}
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  \item{df}{degrees of freedom for residual}