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% File src/library/base/man/warnings.Rd
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% File src/library/base/man/warnings.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 1995-2007 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{warnings}
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\name{warnings}
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\title{Print Warning Messages}
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\alias{warnings}
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\alias{warnings}
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\alias{last.warning}
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\alias{last.warning}
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\alias{print.warnings}
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\alias{print.warnings}
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\title{Print Warning Messages}
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\alias{[.warnings}
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\description{
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\description{
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  \code{warnings} and its \code{print} method print the
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  \code{warnings} and its \code{print} method print the
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  variable \code{last.warning} in a pleasing form.
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  variable \code{last.warning} in a pleasing form.
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}
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}
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\usage{
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\usage{
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   options(warn = w); cat("\n warn =", w, "\n")
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   options(warn = w); cat("\n warn =", w, "\n")
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   for(i in 1:3) { cat(i,"..\n"); m <- matrix(1:7, 3,4) }
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   for(i in 1:3) { cat(i,"..\n"); m <- matrix(1:7, 3,4) }
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}
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}
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warnings()
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warnings()
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options(ow) # reset
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options(ow) # reset
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tail(warnings(), 2) # see the last two warnings only (via '[' method)
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}
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}
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\keyword{programming}
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\keyword{programming}
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\keyword{error}
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\keyword{error}