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refund (version 0.1-40)

pffr_gls: Penalized function-on-function regression with non-i.i.d. residuals (deprecated)

Description

**Deprecated**

`pffr_gls()` is deprecated. Its GLS-based covariance correction produced poorly calibrated inference in practice. Use pffr() with sandwich = "cluster" (the new default) or sandwich = "cl2" for robust covariance estimation instead.

Usage

pffr_gls(
  formula,
  yind,
  hatSigma,
  data = NULL,
  ydata = NULL,
  algorithm = NA,
  method = "REML",
  tensortype = c("ti", "t2"),
  bs.yindex = list(bs = "ps", k = 5, m = c(2, 1)),
  bs.int = list(bs = "ps", k = 20, m = c(2, 1)),
  cond.cutoff = 500,
  ...
)

Value

Does not return; always errors with a deprecation message.

Arguments

formula, yind, hatSigma, data, ydata, algorithm, method, tensortype, bs.yindex, bs.int, cond.cutoff, ...

Ignored. The function always errors.

Author

Fabian Scheipl

See Also

pffr for the recommended approach with sandwich CIs.