initialize_param {robcat} | R Documentation |
Neutral initialization of starting values
Description
Initializes starting values for numerical optimization in a neutral way. The optimization problem itself is convex, so the initialization should not matter much.
Usage
initialize_param(x, y)
Arguments
x |
Vector of integer-valued responses to first rating variable, or contingency table (a |
y |
Vector of integer-valued responses to second rating variable; only required if |
Value
A vector of initial values for the polychoric correlation coefficient, the X-threshold parameters, and the Y-threshold parameters
Examples
## example data
set.seed(123)
x <- sample(c(1,2,3), size = 100, replace = TRUE)
y <- sample(c(1,2,3), size = 100, replace = TRUE)
initialize_param(x, y)
[Package robcat version 0.1.0 Index]