find_algorithm: Find sampling algorithm and optimizers

In easystats/insight: Easy Access to Model Information for Various Model Objects

Find sampling algorithm and optimizers

Description

Returns information on the sampling or estimation algorithm as well as optimization functions, or for Bayesian model information on chains, iterations and warmup-samples.

Usage

find_algorithm(x, ...)

Arguments

x	A fitted model.
...	Currently not used.

Value

A list with elements depending on the model.

For frequentist models:

• algorithm, for instance "OLS" or "ML"

• optimizer, name of optimizing function, only applies to specific models (like gam)

For frequentist mixed models:

• algorithm, for instance "REML" or "ML"

• optimizer, name of optimizing function

For Bayesian models:

• algorithm, the algorithm

• chains, number of chains

• iterations, number of iterations per chain

• warmup, number of warmups per chain

Examples

data(sleepstudy, package = "lme4")
m <- lme4::lmer(Reaction ~ Days + (1 | Subject), data = sleepstudy)
find_algorithm(m)



data(sleepstudy, package = "lme4")
m <- suppressWarnings(rstanarm::stan_lmer(
  Reaction ~ Days + (1 | Subject),
  data = sleepstudy,
  refresh = 0
))
find_algorithm(m)

easystats/insight documentation built on Dec. 14, 2024, 12:34 p.m.