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2017 Aug 14
weight in lm derivation or citation: E[S] = sigma*( 2/n )^(1/2)*Gamma(n/2)/Gamma[ (n-1)/2 ] Whereas the Wikipedia page citing a 1968 TAS article gives: E[S] = sigma*( 2/(n-1) )^(1/2)*Gamma(n/2)/Gamma[ (n-1)/2 ] I looked up the Bloch note online: And it does not have the formula. It was a note on an earlier article by Cureton, who in turn cited an American Journal of Psychology article by Holtxman(1950, v63, 615-617).
2013 Apr 01
Is DUD available in nls()?
SAS has DUD (Does not Use Derivatives)/Secant Method for nonlinear regression, does R offer this option for nonlinear regression? I have read the helpfile for nls() and could not find such option, any suggestion? Thanks, Derek [[alternative HTML version deleted]]
2017 Aug 14
weight in lm
> On 14 Aug 2017, at 13:43 , Spencer Graves <spencer.graves at> wrote: > > > > On 2017-08-14 5:53 AM, peter dalgaard wrote: >>> On 14 Aug 2017, at 10:13 , Troels Ring <tring at> wrote: >>> >>> Dear friends - I hope you will accept a naive question on lm: R version 3.4.1, Windows 10 >>> >>> I
2017 Dec 03
DATIC 2018 Summer Workshops Using R
...ional Psychology University of Connecticut 249 Glenbrook Road, Unit 3064 Storrs, CT 06269-3064 860-486-0183 betsy at<mailto:betsy at> Here?s a link to my newest article with former student Jessica Flake (she is first author, and it is her dissertation): [[alternative HTML version deleted]]