R help - Apr 2013 - Statistical test for heteroscedasticity for an object of class "gls"

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
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School of Geography, University of Leeds, Leeds, LS2 9JT
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http://www.geog.leeds.ac.uk/
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@RiversBenG
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Also, out of interest, does anyone know of a test (or objective method) for
spatial autocorrelation for "gls" objects?

Thanks,

Ben Gillespie, Research Postgraduate
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School of Geography, University of Leeds, Leeds, LS2 9JT
o-------------------------------o
http://www.geog.leeds.ac.uk/
o-------------------------------------o
@RiversBenG
o--------------o
________________________________________
From: Benjamin Gillespie
Sent: 18 April 2013 15:38
To: r-help at R-project.org
Subject: Statistical test for heteroscedasticity for an object of class
"gls"

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