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Outlier detection

Posted: Tue Aug 30, 2011 10:16 am
by Weaver102406
I am attempting to detect outliers for my data, but I do not see the 'Stability Diagnostics' option when I click on View. What do I need to do? Also, once I am able to execute the leverage plots and influence statistics, what metric do I use to determine an observation is an outlier?

Thanks,
Carol

Re: Outlier detection

Posted: Tue Aug 30, 2011 10:24 am
by EViews Gareth
Stability Diagnostics is only available for equations (and only for certain estimation methods), and in EViews 7. If you don't see it, and you're using EViews 7, it is probably the case that you're not looking at an equation object.

Re: Outlier detection

Posted: Tue Aug 30, 2011 10:32 am
by Weaver102406
I am using Eviews 7 and estimated a least squares equation..both ordinary and with random effects, but do not find the Stability Diagnostics option. I have used it in the past and am not sure what I am doing wrong today. :)

Thanks!

Re: Outlier detection

Posted: Tue Aug 30, 2011 10:34 am
by EViews Gareth
It isn't available for panels.

Re: Outlier detection

Posted: Tue Aug 30, 2011 10:37 am
by Weaver102406
What method would you suggest for detecting outliers in panel data since these are not available?

Re: Outlier detection

Posted: Tue Aug 30, 2011 10:54 pm
by EViews Glenn
Part of the reason it is not supported is that once you get to panel data the concept of an outlier becomes more vague. We are not particularly comfortable advocating an outlier method in this case.

Re: Outlier detection

Posted: Wed Aug 31, 2011 8:30 am
by Weaver102406
Thanks...I'll check with my professor for his recommendations.