1#' Sensory data from a french fries experiment.
2#'
3#' This data was collected from a sensory experiment conducted at Iowa State
4#' University in 2004.  The investigators were interested in the effect of
5#' using three different fryer oils had on the taste of the fries.
6#'
7#' Variables:
8#'
9#' \itemize{
10#'   \item time in weeks from start of study.
11#'   \item treatment (type of oil),
12#'   \item subject,
13#'   \item replicate,
14#'   \item potato-y flavour,
15#'   \item buttery flavour,
16#'   \item grassy flavour,
17#'   \item rancid flavour,
18#'   \item painty flavour
19#' }
20#'
21#' @docType data
22#' @format A data frame with 696 rows and 9 variables
23#' @keywords datasets
24"french_fries"
25
26#' Demo data describing the Smiths.
27#'
28#' A small demo dataset describing John and Mary Smith.  Used in the
29#' introductory vignette.
30#'
31#' @docType data
32#' @format A data frame with 2 rows and 5 variables
33#' @keywords datasets
34"smiths"
35
36#' Tipping data
37#'
38#'
39#' One waiter recorded information about each tip he received over a
40#' period of a few months working in one restaurant. He collected several
41#' variables:
42#'
43#' \itemize{
44#'  \item tip in dollars,
45#'  \item bill in dollars,
46#'  \item sex of the bill payer,
47#'  \item whether there were smokers in the party,
48#'  \item day of the week,
49#'  \item time of day,
50#'  \item size of the party.
51#' }
52#'
53#' In all he recorded 244 tips. The data was reported in a collection of
54#' case studies for business statistics (Bryant & Smith 1995).
55#'
56#' @references Bryant, P. G. and Smith, M (1995) \emph{Practical Data
57#'   Analysis: Case Studies in Business Statistics}.  Homewood, IL: Richard D.
58#'   Irwin Publishing:
59#' @format A data frame with 244 rows and 7 variables
60#' @keywords datasets
61"tips"
62
63
64