parse_formula: Parse a mixed model formula into components
In rmcelreath/glmer2stan: RStan models defined by glmer formulas

Description Usage Arguments Details Author(s) See Also

Takes a formula and data frame and parses them into lists of fixed and varying effects, with corresponding model matrices. Used internally by glmer2stan.

1	parse_formula( formula , data )

`formula`	A formula with varying effects
`data`	A data frame or list

The result of parse_formula is a list containing: (1) y, the outcome variable; (2) yname, the character name of the outcome; (3) fixef, a vector of fixed effect names; (4) ranef, a named list of varying (aka random) effect grouping variables, each containing a vector of factor names; (5) dat, a data frame containing all of the needed variables in the fixed and varying effects, including the grouping variables.

Richard McElreath

glmer2stan

rmcelreath/glmer2stan documentation built on May 27, 2019, 9:29 a.m.