robcat (version 0.2)

polyserial_initialize_param: Neutral initialization of starting values for polyserial correlation

Description

Initializes starting values for numerical optimization in a neutral way.

Usage

polyserial_initialize_param(x, num_y, robust = FALSE)

Value

A vector of initial values for the polyserial correlation coefficient, mu, sigma2, and Y-threshold parameters

Arguments

x

Vector of numeric values

num_y

Number of response options of ordinal variable

robust

Should values of mu and sigma2 be initialized in robust way (that is, median and squared MAD)? If FALSE (default), then nonrobust sample mean and variance are used.

Examples

## example data
set.seed(123)
x <- rnorm(100)
polyserial_initialize_param(x = x, num_y = 3)