R: Combine factor levels

Levels {asreml}

R Documentation

Combine factor levels

Function that forms a new model term from an existing factor by merging a subset of its levels. See the combine argument to asreml.

Levels(f, x)

`f`	A factor in the data.
`x`	A vector of length `length(levels(f))` defining the levels of `f` to merge.

[Package asreml version 4.2.0.480 Index]