Hadley Wickham 在他的书中有一个章节 "R Packages" how to incorporate data into an R Package。
Dirk 指向data in packages 上的官方文档。
或者,这里有一个从 ggplot2 包中学习的示例,了解如何使用 rda 文件和 roxygen 合并数据的一种方法。
Here is the data directory in the ggplot2 package。在此示例中,每个数据文件都存储在单独的 rda 文件中(例如,使用 save(foo, file='foo.rda') 生成。
请参阅the file data.r 以获取 Roxygen 命令以生成数据的 Rmd 帮助文件:例如,
#' Prices of 50,000 round cut diamonds
#'
#' A dataset containing the prices and other attributes of almost 54,000
#' diamonds. The variables are as follows:
#'
#' @format A data frame with 53940 rows and 10 variables:
#' \itemize{
#' \item price: price in US dollars (\$326--\$18,823)
#' \item carat: weight of the diamond (0.2--5.01)
#' \item cut: quality of the cut (Fair, Good, Very Good, Premium, Ideal)
#' \item color: diamond colour, from J (worst) to D (best)
#' \item clarity: a measurement of how clear the diamond is
#' (I1 (worst), SI1, SI2, VS1, VS2, VVS1, VVS2, IF (best))
#' \item x: length in mm (0--10.74)
#' \item y: width in mm (0--58.9)
#' \item z: depth in mm (0--31.8)
#' \item depth: total depth percentage = z / mean(x, y) = 2 * z / (x + y) (43--79)
#' \item table: width of top of diamond relative to widest point (43--95)
#' }
"diamonds"