Estimate of differences — calc_diff_vector

Calculate the variance between a baseline prediction and subsequent predictions in a gam model

calc_diff_vector_gam(
  m,
  newdata,
  ci = 0.95,
  use_relative_diff = FALSE,
  method = "delta",
  nrep = 1000
)

Arguments

m

model object

newdata

data.frame nrow >= 2 defining points to compare to the first row in the data frame

ci

range of confidence interval

use_relative_diff

provide estimates as a relative difference, otherwise presented as an absolute difference

method

Selects which method is used to estimate confidence intervals and expectation. Can be one of the following:

"delta"Implements delta approximation.
"posterior"Implements posterior sampling. Use nrep to specify number of bootstrap samples
"bootstrap"Implements simple bootstrap. Use nrep to specify number of bootstrap samples
"efron bootstrap"Implements Efron bootstrap. Use nrep to specify number of bootstrap samples

nrep

number of samples used for posterior sampling. Only used if use_post is TRUE

list