get_vdelta: It computes the vector of covariate change

In plot3logit: Ternary Plots for Trinomial Regression Models

It computes the vector of covariate change

Description

Given the argument delta passed to field3logit either as a numeric vector, a character or an expression (see field3logit), get_vdelta returns the numeric vector of covariate change Δ\in\textbf{R}^k.

Usage

get_vdelta(delta, model)

Arguments

delta	see field3logit.
model	object of class model3logitreturned by extract3logit().

Value

numeric vector of covariate change Δ\in\textbf{R}^k.

Examples

library(magrittr)

# Example 1
list(B = matrix(c(0.11, 0.07, -0.1, 0.09), 2)) %>%
  extract3logit %>%
  plot3logit:::get_vdelta(c(0, 1), .)

# Example 2
library(nnet)
data(cross_1year)
mod0 <- multinom(employment_sit ~ ., cross_1year)
extract3logit(mod0) %>%
  plot3logit:::get_vdelta('genderFemale', .)

# Example 3
extract3logit(mod0) %>%
  plot3logit:::get_vdelta('-0.5 * genderFemale + hsscore', .)

plot3logit documentation built on July 19, 2022, 9:07 a.m.