Package: SimMultiCorrData
Type: Package
Title: Simulation of Correlated Data with Multiple Variable Types
Version: 0.1.0
Author: Allison Cynthia Fialkowski
Maintainer: Allison Cynthia Fialkowski <allijazz@uab.edu>
Description: Generate continuous (normal or non-normal), binary, ordinal, and count (Poisson or Negative 
    Binomial) variables with a specified correlation matrix.  It can also produce a single continuous 
    variable.  This package can be used to simulate data sets that mimic real-world situations (i.e. 
    clinical data sets, plasmodes).  All variables are generated from standard normal variables with 
    an imposed intermediate correlation matrix.  Continuous variables are simulated by 
    specifying mean, variance, skewness, standardized kurtosis, and fifth and sixth standardized 
    cumulants using either Fleishman's Third-Order (<DOI:10.1007/BF02293811>) or Headrick's 
    Fifth-Order (<DOI:10.1016/S0167-9473(02)00072-5>) Polynomial Transformation.  Binary and 
    ordinal variables are simulated using a modification of GenOrd's ordsample function.  Count 
    variables are simulated using the inverse cdf method.  There are two simulation pathways 
    which differ primarily according to the calculation of the intermediate correlation matrix.  
    In Method 1, the intercorrelations involving count variables are determined using a simulation 
    based, logarithmic correlation correction (adapting Yahav and Shmueli's 2012 method, 
    <DOI:10.1002/asmb.901>).  In Method 2, the count variables are treated as ordinal (adapting 
    Barbiero and Ferrari's 2015 modification of GenOrd, <DOI:10.1002/asmb.2072>).  There is an 
    optional error loop that corrects the final correlation matrix to be within a user-specified 
    precision value of the target matrix.  The package also includes functions to calculate 
    standardized cumulants for theoretical distributions or from real data sets, check if a 
    target correlation matrix is within the possible correlation bounds (given the distributions 
    of the simulated variables), summarize results (numerically or graphically), to verify valid 
    power method pdfs, and to calculate lower standardized kurtosis bounds.
Depends: R (>= 3.3.1)
License: GPL-2
Imports: BB, nleqslv, MASS, GenOrd, psych, Matrix, VGAM, triangle,
        ggplot2, grid, stats, utils
Encoding: UTF-8
LazyData: true
RoxygenNote: 6.0.1
Suggests: knitr, rmarkdown, printr
VignetteBuilder: knitr
URL: https://github.com/AFialkowski/SimMultiCorrData
NeedsCompilation: no
Packaged: 2017-06-29 21:11:25 UTC; Allison
Repository: CRAN
Date/Publication: 2017-06-29 22:44:28 UTC
