fit_var_each: Fit an ordinary least-squares VAR for every subject

In idiographic: Person-Specific (Idiographic) and Heterogeneous Complex Networks

Fit an ordinary least-squares VAR for every subject

Description

Applies fit_var() to each subject separately, returning one transparent person-specific OLS VAR result per individual. This is the unregularized companion to fit_graphical_var_each() and is useful as an equivalence baseline for checking lag construction, scaling, and temporal coefficient direction.

Usage

fit_var_each(data, vars, id, day = NULL, beep = NULL, min_obs = NULL, ...)

Arguments

data	A data.frame or matrix with columns for variables and optional id/day/beep columns.
vars	Character vector of variable names.
id	Character. Name of the person-ID column; required.
day	Character. Name of the day/session column, or NULL.
beep	Character. Name of the measurement-occasion column, or NULL.
min_obs	Integer or NULL. Keep only subjects with at least this many observations.
...	Further arguments passed to fit_var().

Value

A named list of var_result objects (class var_list), one element per subject, named by subject id. Subjects that cannot be fit are dropped with a warning.

Examples

set.seed(1)
d <- data.frame(
  id = rep(1:3, each = 40),
  day = rep(1, 120),
  beep = rep(seq_len(40), 3),
  A = rnorm(120), B = rnorm(120), C = rnorm(120)
)
fits <- fit_var_each(d, vars = c("A", "B", "C"), id = "id",
                       day = "day", beep = "beep")
fits[["1"]]

idiographic documentation built on Aug. 4, 2026, 1:07 a.m.