df.residual(x, ...)
x
 | an object for which the degrees-of-freedom are desired. | 
...
 | additional optional arguments. | 
x.
This is a generic function which can be used to extract residual degrees-of-freedom for fitted models. Consult the individual modeling functions for details details on how to use this function
There is no default method for this function.
deviance, glm, lm.