Fixed effects: no pooling

The no-pooling peer of re: identical formula grammar, but unit effects get flat independent priors instead of a hierarchical prior (Gelman-Hill: "FE = RE with infinite variance"). fe(1) gives classic unit dummies; fe(1 + x) additionally gives unit-specific slopes. The first unit is the reference category (its effects are fixed to 0), so fe() remains identified alongside a global intercept and global slopes.

Usage

fe(x = 1, showFE = FALSE)

Arguments

x

The effects expression: 1, 1 + var, 0 + var.

showFE

Logical; if TRUE, per-unit estimates are monitored and reported. Default FALSE.

Value

A bml_fe object.

See also

re, hm, mm