Aliases (Dependencies) in a Model - Generic function

DESCRIPTION:

Returns the alias pattern from an object or model.
This function is an S Version 3 generic (see Methods); method functions can be written to handle specific S Version 3 classes of data. Classes which already have methods for this function include:
aovlist , design, formula, lm, mlm.

USAGE:

alias(object, ...) 

REQUIRED ARGUMENTS:

object
an object, such as a fitted linear model or analysis of variance.

OPTIONAL ARGUMENTS:

...
additional arguments suitable for the method that will be used.

VALUE:

an object, which represents the kinds of dependency found in the terms of the model.

DETAILS:

The main method for aliasing is alias.lm, defined for linear models but applicable also to models inheriting from these ( glm and gam, for example). This returns either the complete or partial aliasing information, or both.

SEE ALSO:

The methods for this function, especially .
, .

EXAMPLES:

bhh.aov <- aov(Yield ~ Conc * Cat * Temp, catalyst[c(2,3,5,8),]) 
alias(bhh.aov) 
alias(Yield ~ Conc * Cat * Temp, catalyst[c(2,3,5,8),])