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- TITLE(interaction @@ Factor Interactions)
- USAGE(
- interaction(fac1, fac2, data.order=true)
- )
- ARGUMENTS(
- ARG(fac1 @@ the name of the first factor.)
- ARG(fac2 @@ the name of the second factor.)
- ARG(data.order @@ controls the order in which the factor level
- names are stored.)
- )
- DESCRIPTION(
- LANG(interaction) returns a new factor that has a level
- for each combination of the factors LANG(fac1) and LANG(fac2).
- If LANG(true), it is the order that the factor levels first appear
- in the vectors LANG(fac1) and LANG(fac2), otherwise alphabetical.
- )
-