EDMS657Data: Datasets for EDMS657

#' EDSM657 Data Files
#' @docType package
#' @name EDMS657Data
#' @description Data Files used in EDMS657 at UMD
NULL

#' Female turtles data.
#'
#' A data set containing the data from female turtles.
#' @format an rda file
"turtle"


#' Data for medical students.
#'
#' A data set containing the data from 61 fourth year medical students (Marascuilo & Levin, 1983).
#' @format an rda file
"med.data"


#' Spearman's data.
#'
#' The correlation matrix for Spearman's data. 
#' @format an rda file
"spearman"


#' Hotelling's data.
#'
#' The correlation matrix for hotelling's data (1933). It is a correlation matrix from a sample of 200 seventh grade students on tests of 1) reading speed, 2) reading power, 3) arithmetic speed, and 4) arithmetic power.
#' @format an rda file
"hotelling"


#' Thurstone's box problem.
#'
#' The correlation matrix for Thurstone's box problem.
#' @format an rda file
"box.data"


#' Assessment data from Hancock (1994).
#'
#' The correlation matrix reported in Hancock (1994). The examinations for two educational measurement/statistics classes were constructed as half multiple-choice (MC) and half constructed-response (CR), containing equal number of items in each format written for the knowledge (know), comprehension (comp), application (appl), and analysis (anal) levels of Bloom’s Taxonomy.
#' @references Hancock (1994)
#' @format an rda file
"test.data"



#' Polytomous item response data from Finney et al. (2004).
#'
#' The item response data from Finney et al. (2004). There were four scale items that are expected to measure a single factor: Working Avoidance Orientation. The responses were coded on a 3-point scale (1 = not true, 3 = very true), n=300. 
#' @format an rda file
"wav"


#' Distance between US cities.
#'
#' The distance matrix between 11 US cities. 
#' @format an rda file
"geodist"


#' Rate how similar are the nine types of animals.
#'
#' Someone(presumably Greg) has ranked all the possible pairs of the 9 animals in terms of their similarity. We want to know what governs this individual’s opinions about the similarity/dissimilarity between the animals.
#' @format an rda file
"animal"


#' Data for classifying beers.
#'
#' A marketing analyst is trying to develop a classification scheme for beer based on several characteristics that may be relevant to consumers. She samples 20 popular beers and gathers data on their per-serving in terms of the following 4 aspects: calorie content, sodium content, alcohol content, and cost per unit volume.
#' @format an rda file
"beer"



#' Data used for two-group MANOVA (Hotelling's T^2).
#'
#' Middle school students are randomly assigned to an educational treatment or a control group. After receiving their treatment or control experience, students are evaluated in terms of cognitive and affective outcomes together. We are interested in testing whether there is any difference between the treatment/control groups regarding the set of outcomes.
#' @format an rda file
"Hotellings_T"



#' Data used for three-group MANOVA.
#'
#' Middle school students are randomly assigned to one of three treatment groups. After receiving their respective treatment or control experience, students are evaluated in terms of cognitive and affective outcomes together. We are interested in testing whether there is any difference between the three treatment groups regarding the set of outcomes.
#' @format an rda file
"manova_dat"


#' Data used for three-group MANOVA with six outcomes.
#'
#' The faculties from a public research univeristy were evaluated at the end of a semester with regard to the courses they taught in that semester. Students rated the faculties on six aspects. We are interested in testing whether there is any difference between different types of faculties regarding the set of outcomes.
#' @format an rda file
"Teacher_ratings"


#' Data used for two-way MANOVA.
#'
#' Researchers are interested in studying the effects of drugs and physical exercise on people’s weight loss and positive attitude. They wish to test both the main effects and interactions effects.
#' @format an rda file
"MANOVA2way"


#' Data used for MANOVA with repeated measures.
#'
#' Researchers are interested in studying whether the brand of sneakers affects how high individuals can jump up from the ground. A group of subjects were tested repeatedly wearing three different brands of sneakers: Reebok, Nike, and Converse. 
#' @format an rda file
"MANOVA_RM"


#' Data used for model-based MANOVA example.
#'
#' Testing the differences in three outcome variables (teach1-teach3) between two professor groups.
#' @format an rda file
"teacher"


#' Data used for k-means cluster analysis example.
#'
#' Twelve items adapted from the Achievement Goal Questionnairewere administered to n=2111 college students (see Finney, Pieper, & Barron, 2004).
#' @format an rda file
"AGOscores"



#' Data used for the univariate mixture modeling example.
#'
#' Liu, Hancock, & Harring (2010) discussed how mixtures of univariate normal distributions could be used to examine potential systematic measurement problems. Head circumference measurements data were collected from children who were subject to child abuse and/or neglect.
#' @format an rda file
"ME_dat"



#' Data used for the CART example.
#'
#' Baseball data.
#' @format an rda file
"hitters"


#' Data used for the CART example.
#'
#' Heart health data.
#' @format an rda file
"heart"


#' Data used for the LCA example.
#' 
#' Dayton & Scheers (1997) surveyed n=319 upper level undergraduates
#' about their cheating behavior in the university setting.
#' "Haveyou ever lied to avoid taking an exam and/or to avoid handing in a paper on time?"
#' "Have you ever purchased a term paper and/or acquired a copy of an exam ahead of time?"
#' "Have you ever copied answers from another student during an exam?"
#' @format an rda file
"cheat_dat"


#' Data used for the SVM example.
#' 
#' One binary outcome: Whether or not a patient has the heart disease.
#' Two predictor variables: age and cholesterol level. 
#' @format an rda file
"lab"