offset                 package:stats                 R Documentation

Include an Offset in a Model Formula

Description:

     An offset is a term to be added to a linear predictor, such as in
     a generalised linear model, with known coefficient 1 rather than
     an estimated coefficient.

Usage:

     offset(object)

Arguments:

  object: An offset to be included in a model frame

Details:

     There can be more than one offset in a model formula, but '-' is
     not supported for 'offset' terms (and is equivalent to '+').

Value:

     The input value.

See Also:

     'model.offset', 'model.frame'.

     For examples see 'glm' and 'Insurance' in package 'MASS'.

