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% File src/library/stats/man/plot.lm.Rd
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% File src/library/stats/man/plot.lm.Rd
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% Part of the R package, https://www.R-project.org
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% Part of the R package, https://www.R-project.org
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% Copyright 1995-2018 R Core Team
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% Copyright 1995-2019 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{plot.lm}
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\name{plot.lm}
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\alias{plot.lm}
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\alias{plot.lm}
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% \alias{plot.mlm} %which is .NotYetImplemented()
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% \alias{plot.mlm} %which is .NotYetImplemented()
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\title{Plot Diagnostics for an lm Object}
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\title{Plot Diagnostics for an lm Object}
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\usage{
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\usage{
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\method{plot}{lm}(x, which = c(1:3, 5), %% was which = 1:4
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\method{plot}{lm}(x, which = c(1,2,3,5), %% was which = 1:4
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caption = list("Residuals vs Fitted", "Normal Q-Q",
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caption = list("Residuals vs Fitted", "Normal Q-Q",
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"Scale-Location", "Cook's distance",
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"Scale-Location", "Cook's distance",
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"Residuals vs Leverage",
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"Residuals vs Leverage",
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expression("Cook's dist vs Leverage " * h[ii] / (1 - h[ii]))),
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expression("Cook's dist vs Leverage " * h[ii] / (1 - h[ii]))),
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panel = if(add.smooth) panel.smooth else points,
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panel = if(add.smooth) function(x, y, ...)
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panel.smooth(x, y, iter=iter.smooth, ...) else points,
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sub.caption = NULL, main = "",
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sub.caption = NULL, main = "",
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ask = prod(par("mfcol")) < length(which) && dev.interactive(),
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ask = prod(par("mfcol")) < length(which) && dev.interactive(),
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\dots,
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\dots,
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id.n = 3, labels.id = names(residuals(x)), cex.id = 0.75,
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id.n = 3, labels.id = names(residuals(x)), cex.id = 0.75,
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qqline = TRUE, cook.levels = c(0.5, 1.0),
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qqline = TRUE, cook.levels = c(0.5, 1.0),
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add.smooth = getOption("add.smooth"), label.pos = c(4,2),
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add.smooth = getOption("add.smooth"),
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iter.smooth = if(isGlm && binomialLike) 0 else 3,
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label.pos = c(4,2),
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cex.caption = 1, cex.oma.main = 1.25)
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cex.caption = 1, cex.oma.main = 1.25)
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}
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}
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\arguments{
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\arguments{
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\item{x}{\code{lm} object, typically result of \code{\link{lm}} or
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\item{x}{\code{lm} object, typically result of \code{\link{lm}} or
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\code{\link{glm}}.}
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\code{\link{glm}}.}
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\item{qqline}{logical indicating if a \code{\link{qqline}()} should be
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\item{qqline}{logical indicating if a \code{\link{qqline}()} should be
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added to the normal Q-Q plot.}
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added to the normal Q-Q plot.}
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\item{cook.levels}{levels of Cook's distance at which to draw contours.}
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\item{cook.levels}{levels of Cook's distance at which to draw contours.}
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\item{add.smooth}{logical indicating if a smoother should be added to
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\item{add.smooth}{logical indicating if a smoother should be added to
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most plots; see also \code{panel} above.}
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most plots; see also \code{panel} above.}
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\item{iter.smooth}{the number of robustness iterations, the argument
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\code{iter} in \code{\link{panel.smooth}()}; the default uses no such
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iterations for \code{\link{glm}(*, family=binomial)} fits which is
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particularly desirable for the (predominant) case of binary observations.}
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\item{label.pos}{positioning of labels, for the left half and right
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\item{label.pos}{positioning of labels, for the left half and right
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half of the graph respectively, for plots 1-3.}
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half of the graph respectively, for plots 1-3.}
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\item{cex.caption}{controls the size of \code{caption}.}
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\item{cex.caption}{controls the size of \code{caption}.}
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\item{cex.oma.main}{controls the size of the \code{sub.caption} only if
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\item{cex.oma.main}{controls the size of the \code{sub.caption} only if
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that is \emph{above} the figures when there is more than one.}
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that is \emph{above} the figures when there is more than one.}
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