[R] Statistical test for heteroscedasticity for an object of class "gls"

[Benjamin Gillespie]

Hi there,

Does anyone know of a statistical test for heteroscedasticity for an object of class "gls"? (or alternative objective methods).

Thanks in advance,

Ben Gillespie, Research Postgraduate
o-------------------------------------------------------------------o
School of Geography, University of Leeds, Leeds, LS2 9JT
o-------------------------------o
http://www.geog.leeds.ac.uk/
o-------------------------------------o
@RiversBenG
o--------------o