R: Extract (or "get") components from a 'KRmodcomp' object.

getkr {pbkrtest} | R Documentation

## Extract (or "get") components from a `KRmodcomp` object.

### Description

Extract (or "get") components from a `KRmodcomp` object, which is the result of the `KRmodcomp` function.

### Usage

    getKR(object, name = c("ndf", "ddf", "Fstat", "p.value", "F.scaling",
      "FstatU", "p.valueU", "aux"))

### Arguments

`object` | A `KRmodcomp` object, which is the result of the `KRmodcomp` function
`name` | The available slots. If `name` is missing or `NULL` then everything is returned.

### Author(s)

Søren Højsgaard sorenh@math.aau.dk

### References

Ulrich Halekoh, Søren Højsgaard (2014)., A Kenward-Roger Approximation and Parametric Bootstrap Methods for Tests in Linear Mixed Models - The R Package pbkrtest., Journal of Statistical Software, 58(10), 1-30., http://www.jstatsoft.org/v59/i09/

### See Also

`KRmodcomp`, `PBmodcomp`, `vcovAdj`

### Examples

    data(beets, package='pbkrtest')
    lg <- lmer(sugpct ~ block + sow + harvest + (1|block:harvest),
                  data=beets, REML=FALSE)
    sm <- update(lg, .~. - harvest)
    xx <- KRmodcomp(lg, sm)
    getKR(xx, "ddf") # get denominator degrees of freedom.

[Package pbkrtest version 0.4-7 Index]