summary.loglm              package:MASS              R Documentation

Summary Method Function for Objects of Class 'loglm'

Description:

     Returns a summary list for log-linear models fitted by iterative
     proportional scaling using 'loglm'.

Usage:

     ## S3 method for class 'loglm':
     summary(object, fitted = FALSE, ...)

Arguments:

  object: a fitted loglm model object. 

  fitted: if 'TRUE' return observed and expected frequencies in the
          result. Using 'fitted = TRUE' may necessitate re-fitting the
          object. 

     ...: arguments to be passed to or from other methods. 

Details:

     This function is a method for the generic function 'summary()' for
     class '"loglm"'. It can be invoked by calling 'summary(x)' for an
     object 'x' of the appropriate class, or directly by calling
     'summary.loglm(x)' regardless of the class of the object.

Value:

     a list is returned for use by 'print.summary.loglm'. This has
     components

 formula: the formula used to produce 'object' 

   tests: the table of test statistics (likelihood ratio, Pearson) for
          the fit. 

      oe: if 'fitted = TRUE', an array of the observed and expected
          frequencies, otherwise 'NULL'. 

References:

     Venables, W. N. and Ripley, B. D. (2002) _Modern Applied
     Statistics with S._ Fourth edition.  Springer.

See Also:

     'loglm', 'summary'

