Sum of squares

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jessisam
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Joined: Thu May 07, 2009 2:51 am

Sum of squares

Postby jessisam » Thu Jun 11, 2009 3:54 am

I have a question regarding "Sum sq.dev" that appears when making the descriptive statistics table for subgroups. Is this the same as "sum of squares" (Sum(x-x(mean))^2)?
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EViews Gareth
Fe ddaethom, fe welon, fe amcangyfrifon
Posts: 13319
Joined: Tue Sep 16, 2008 5:38 pm

Re: Sum of squares

Postby EViews Gareth » Thu Jun 11, 2009 8:01 am

Well "sum of squares" usually means Sum(X^2).

However "Sum sq. dev" is calculated as Sum((X-mean(x))^2), which is the formula you give...
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