Description Usage Arguments Value Note See Also Examples

Constructs model frames for multiple formulas simultaneously, so that recycling, missing value removal, and subsetting are compatible across all formulas.

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`formulas` |
A list of formulas |

`data` |
A data frame to look up variables |

`na.action` |
Name of an |

`subset` |
Subset to use |

`weights` |
Optional vector specifying weights to use. |

`check.env` |
If |

`one.frame` |
If |

A data frame or list of data frames.

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.

The code and documentation of this function are used with only minor modifications from the one available at the R Developer page - http://developer.r-project.org/.

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