nobars {lme4} | R Documentation

## Omit terms separated by vertical bars in a formula

### Description

Remove the random-effects terms from a mixed-effects formula, thereby producing the fixed-effects formula.

### Usage

      nobars(term)

### Arguments

`term` | the right-hand side of a mixed-model formula

### Value

the fixed-effects part of the formula

### Note

This function is called recursively on individual terms in the model, which is why the argument is called `term` and not a name like `form`, indicating a formula.

### See Also

`formula`, `model.frame`, `model.matrix`.

Other utilities: `findbars`, `mkRespMod`, `mkReTrms`, `nlformula`, `subbars`

### Examples

    nobars(Reaction ~ Days + (Days|Subject)) ## => Reaction ~ Days

[Package lme4 version 1.1-11 Index]