Autocorrelation structures
Specify autocorrelation terms in brms models. Currently supported terms
are arma, ar, ma,
cosy, sar, car, and
fcor. Terms can be directly specified within the formula, or
passed to the autocor argument of brmsformula in the
form of a one-sided formula. For deprecated ways of specifying
autocorrelation terms, see cor_brms.
The autocor term functions are almost solely useful when called in formulas passed to the brms package. They do not evaluate its arguments – but exist purely to help set up a model with autocorrelation terms.
# specify autocor terms within the formula y ~ x + arma(p = 1, q = 1) + car(M) # specify autocor terms in the 'autocor' argument bf(y ~ x, autocor = ~ arma(p = 1, q = 1) + car(M)) # specify autocor terms via 'acformula' bf(y ~ x) + acformula(~ arma(p = 1, q = 1) + car(M))
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