[R] where can I find Durbin-Waston test tables for Confidence Level 2.5% or 0.5%?
Chuck Cleland
ccleland at optonline.net
Wed Mar 7 10:55:04 CET 2007
Michael wrote:
> Hi all,
>
> I am doing a two-sided DW test:
>
> H0: rho = 0
> H1: rho =/= 0
>
> My understanding is that most test statistics tables are one-sided. It's the
> way they created the table.
>
> So from online, by doing Googling, I found a bunch of DW tables for
> Confidence Level 5%.
>
> Those tables can answer my two-sided question at 5x2 = 10% confidence level.
>
> But what if I want two-sided test at 1% and 5% confidence level?
>
> Then I need 0.5% and 2.5% tables on those one-sided table.
>
> My sample size is 278, and the number of parameters is 2, these adds to the
> hardship of finding a good table...
>
> Could anybody give me some pointers of two-sided DW tables or 1-sided DW
> table with 0.5% and 2.5% confidence levels?
>
> Thanks a lot!
>
> Moreover, I appreciate any pointers about electronic tables that I can use
> in programs, I want to implement DW test myself, but let the program
> searching a table automatically...
Are you aware of the implementations of this test in the car, lmtest,
and fMultivar packages?
RSiteSearch("Durbin-Watson", restrict="function") finds those functions.
> Thanks a lot!
>
> [[alternative HTML version deleted]]
>
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--
Chuck Cleland, Ph.D.
NDRI, Inc.
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