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% File src/library/datasets/man/chickwts.Rd
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% File src/library/datasets/man/chickwts.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 1995-2025 R Core Team
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% Copyright 1995-2026 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{chickwts}
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\name{chickwts}
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\docType{data}
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\docType{data}
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\alias{chickwts}
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\alias{chickwts}
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}
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}
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\usage{chickwts}
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\usage{chickwts}
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\format{
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\format{
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  A data frame with 71 observations on the following 2 variables.
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  A data frame with 71 observations on the following 2 variables.
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  \describe{
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  \describe{
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    \item{\code{weight}}{a numeric variable giving the chick weight.}
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    \item{\code{weight}}{a numeric variable giving the chick weight in grams.}
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    \item{\code{feed}}{a factor giving the feed type.}
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    \item{\code{feed}}{a factor giving the feed type.}
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  }
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  }
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}
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}
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\source{
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\source{
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  \bibcitet{R:Snedecor:1948}.
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  \bibshow{R:Snedecor:1948}
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}
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}
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\details{
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\details{
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  Newly hatched chicks were randomly allocated into six groups, and each
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  Newly hatched chicks were randomly allocated into six groups, and each
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  group was given a different feed supplement.  Their weights in grams
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  group was given a different feed supplement.  Their weights in grams
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  after six weeks are given along with feed types.
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  after six weeks are given along with feed types.
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}
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}
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\references{
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\references{
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  \bibshow{*, R:McNeil:1977}
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  \bibshow{R:McNeil:1977}
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}
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}
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\examples{
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\examples{
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require(stats); require(graphics)
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require(stats); require(graphics)
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boxplot(weight ~ feed, data = chickwts, col = "lightgray",
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boxplot(weight ~ feed, data = chickwts, col = "lightgray",
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    varwidth = TRUE, notch = TRUE, main = "chickwt data",
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    varwidth = TRUE, notch = TRUE, main = "chickwt data",