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name formulasframe alias formulasframe also need an alias for each other topic documented here title model frames for multiple formulas description constructs model frames for multiple formulas simultaneously so that recycling missing value removal and subsetting are compatible across all formulas usage formulasframe formulas data parent frame na action getoption na action subset null check env false one frame true maybe also usage for other objects documented here arguments item formulas a list of formulas item data a data frame to look up variables item na action name of an code na action function item subset subset to use item check env if code true warn when formulas don t have the same environment item one frame if code true return a single data frame otherwise return a list of data frames value a data frame or list of data frames note this function is designed to simplify the avoidance of scoping anomalies in modelling functions by allowing all the variables that are looked up in a data argument to be specified as formulas seealso code link model frame examples data trees trees 3 3