Re: Question about DurbinWatsonD
- To: mathgroup at smc.vnet.net
- Subject: [mg119073] Re: Question about DurbinWatsonD
- From: richard i pelletier <bitbucket at comcast.net>
- Date: Sat, 21 May 2011 06:47:01 -0400 (EDT)
- References: <ir5g8t$t1m$1@smc.vnet.net>
In article <ir5g8t$t1m$1 at smc.vnet.net>,
Gilmar Rodriguez-pierluissi <peacenova at yahoo.com> wrote:
> when I evaluate:
>
> data = {{0.05, 90}, {0.09, 95}, {0.14, 110}, {0.17, 125}, {0.2, 140}, {0.21,
> 150}, {0.23, 175}, {0.25, 190}, {0.3, 210}, {0.35, 255}};
>
> LinearModelFit[data, {1, x^2}, x, RegressionReport -> {DurbinWatsonD}]
>
> the above line will not produce the DurbinWatsonD value of 1.14 shown in the
> example on that web page.
The correct syntax for LinearModelFit is
LinearModelFit[data,{1,x^2},x]["DurbinWatsonD"]
Vale,
rip
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