Xsim: Title: Simulate Design matrix and Indicators

In Goodgolden/LDTM: Longitudinal Dirichlet Tree Multinomial Model

Title: Simulate Design matrix and Indicators

Description

Title: Simulate Design matrix and Indicators

Usage

Xsim(
  subject_sim = 100,
  tree = NULL,
  num_leaf = 10,
  covariates_sim = 50,
  rho = NULL,
  Sigma = NULL,
  num_branch = 3,
  num_cov = 5,
  seed = 555
)

Arguments

subject_sim	integer Number of subjects to simulate
tree	phylo The function is set to simulate the tree structure for the simulated data. Default is NULL.
covariates_sim	integer Number of covariates to simulate
rho	numeric Used for covariate correlation between 0 & 1. Default is NULL. Need either rho or Sigma to be input.
Sigma	matrix A symmetric positive definite matrix used for covariate correlation structure columns must match number of covariates. Default is NULL. Need either rho or Sigma to be input.
num_branch	integer Number of tree branches
num_cov	integer Number of associated covariates to simulate
seed	integer The desired seed for reproducibility. Default is 555.
num_leaf'integer'	Number of nodes in tree to simulate

Value

A list of outcomes including:

• X = The design matrix

• Zeta = The matrix indicating which covariates are significant

• Sigma = The simulated covariance matrix

• tree = The simulated tree, phylo object generated by the ape package

Goodgolden/LDTM documentation built on May 25, 2022, 5:25 p.m.