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SimCorrMix
View on CRAN: Click
here
Download and install SimCorrMix package within the R console
Install from CRAN:
install.packages("SimCorrMix")
Install from Github:
library("remotes")
install_github("cran/SimCorrMix")
Install by package version:
library("remotes")
install_version("SimCorrMix", "0.1.1")
Attach the package and use:
library("SimCorrMix")
Maintained by
Allison Cynthia Fialkowski
[Scholar Profile | Author Map]
[Scholar Profile | Author Map]
All associated links for this package
10.32614/CRAN.package.SimCorrMix . https://github.com/AFialkowski/SimCorrMix . SimCorrMix results . SimCorrMix.pdf . SimCorrMix_0.1.1.tar.gz . SimCorrMix_0.1.1.zip . SimCorrMix_0.1.1.zip . SimCorrMix_0.1.1.zip . SimCorrMix_0.1.1.tgz . SimCorrMix_0.1.1.tgz . SimCorrMix_0.1.1.tgz . SimCorrMix_0.1.1.tgz . SimCorrMix_0.1.1.tgz . SimCorrMix_0.1.1.tgz . SimCorrMix archive . https://CRAN.R-project.org/package=SimCorrMix .
First Published: 2018-02-26
Latest Update: 2018-07-01
Description:
Generate continuous (normal, non-normal, or mixture distributions), binary, ordinal, and count (regular or zero-inflated, Poisson or Negative Binomial) variables with a specified correlation matrix, or one continuous variable with a mixture distribution.This package can be used to simulate data sets that mimic real-world clinical or genetic data sets (i.e., plasmodes, as in Vaughan et al., 2009 <doi:10.1016/j.csda.2008.02.032>).The methods extend those found in the 'SimMultiCorrData' R package.Standard normal variables with an imposed intermediate correlation matrix are transformed to generate the desired distributions. Continuous variables are simulated using either Fleishman (1978)'s third order <doi:10.1007/BF02293811> or Headrick (2002)'s fifth order <doi:10.1016/S0167-9473(02)00072-5> polynomial transformation method (the power method transformation, PMT).Non-mixture distributions require the user to specify mean, variance, skewness, standardized kurtosis, and standardized fifth and sixth cumulants.Mixture distributions require these inputs for the component distributions plus the mixing probabilities.Simulation occurs at the component level for continuous mixture distributions.The target correlation matrix is specified in terms of correlations with components of continuous mixture variables.These components are transformed into the desired mixture variables using random multinomial variables based on the mixing probabilities.However, the package provides functions to approximate expected correlations with continuous mixture variables given target correlations with the components. Binary and ordinal variables are simulated using a modification of ordsample() in package 'GenOrd'. Count variables are simulated using the inverse CDF method.There are two simulation pathways which calculate intermediate correlations involving count variables differently. Correlation Method 1 adapts Yahav and Shmueli's 2012 method <doi:10.1002/asmb.901> and performs best with large count variable means and positive correlations or small means and negative correlations.Correlation Method 2 adapts Barbiero and Ferrari's 2015 modification of the 'GenOrd' package <doi:10.1002/asmb.2072> and performs best under the opposite scenarios.The optional error loop may be used to improve the accuracy of the final correlation matrix.The package also contains functions to calculate the standardized cumulants of continuous mixture distributions, check parameter inputs, calculate feasible correlation boundaries, and summarize and plot simulated variables.
How to cite:
Allison Cynthia Fialkowski (2018). SimCorrMix: Simulation of Correlated Data with Multiple Variable Types Including Continuous and Count Mixture Distributions. R package version 0.1.1, https://cran.r-project.org/web/packages/SimCorrMix. Accessed 31 Mar. 2025.
Previous versions and publish date:
0.1.0 (2018-02-26 20:04)
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Complete documentation for SimCorrMix
Functions, R codes and Examples using
the SimCorrMix R package
Some associated functions: SimCorrMix . calc_mixmoments . contmixvar1 . corr_error . corrvar . corrvar2 . intercorr . intercorr2 . intercorr_cat_nb . intercorr_cat_pois . intercorr_cont . intercorr_cont_nb . intercorr_cont_nb2 . intercorr_cont_pois . intercorr_cont_pois2 . intercorr_nb . intercorr_pois . intercorr_pois_nb . maxcount_support . norm_ord . ord_norm . plot_simpdf_theory . plot_simtheory . rho_M1M2 . rho_M1Y . summary_var . validcorr . validcorr2 . validpar .
Some associated R codes: SimCorrMix.R . calc_mixmoments.R . contmixvar1.R . corr_error.R . corrvar.R . corrvar2.R . intercorr.R . intercorr2.R . intercorr_cat_nb.R . intercorr_cat_pois.R . intercorr_cont.R . intercorr_cont_nb.R . intercorr_cont_nb2.R . intercorr_cont_pois.R . intercorr_cont_pois2.R . intercorr_nb.R . intercorr_pois.R . intercorr_pois_nb.R . maxcount_support.R . norm_ord.R . ord_norm.R . plot_simpdf_theory.R . plot_simtheory.R . rho_M1M2.R . rho_M1Y.R . summary_var.R . validcorr.R . validcorr2.R . validpar.R . Full SimCorrMix package functions and examples
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