Create a model specification for modeling low-frequency drift in fmri time series.

Create a model specification for modeling low-frequency drift in fmri time series.

Usage

baseline(
  degree = 1,
  basis = c("constant", "poly", "bs", "ns"),
  name = NULL,
  intercept = c("runwise", "global", "none")
)

Arguments

degree

number of basis terms for each image block (ignored for 'constant' basis)

basis

the type of polynomial basis.

name

the name of the term

intercept

the type of intercept to include

constant

whether to include an intercept term