... and this, of course, is a nice example of how statistics contributes to the "irreproducibility crisis" now roiling Science.
Cheers, Bert (Quote from a long ago engineering colleague: "Whenever I see an outlier, I never know whether to throw it away or patent it.") Bert Gunter "Data is not information. Information is not knowledge. And knowledge is certainly not wisdom." -- Clifford Stoll On Sat, Sep 12, 2015 at 9:52 AM, David Winsemius <dwinsem...@comcast.net> wrote: > > On Sep 12, 2015, at 2:32 AM, Juli wrote: > >> Hi Jim, >> >> thank you for your help. :) >> >> My point is, that there are outlier and I don´t really know how to deal with >> that. >> >> I need the dataframe for a regression and read often that only a few outlier >> can change your results very much. In addition, regression diacnostics >> didn´t indcate me the best results. >> Yes, and I know its not the core of statistics to work in a way you get >> results you would like to have ;). >> >> So what is your suggestion? >> >> And if I remove the outliers, my problem ist, that as you said, they differ >> in length. I need the data frame for a regression, so can I remove the whole >> column or is there a call to exclude the data? > > Most regression methods have a 'subset' parameter which would allow you to > distort the data to your desired specification. But why not think about > examining a different statistical model or using robust methods? That way you > can keep all your data. (Sounds like you don't really have a lot.) > > -- > David. >> >> JULI >> >> >> >> -- >> View this message in context: >> http://r.789695.n4.nabble.com/removing-outlier-tp4712137p4712170.html >> Sent from the R help mailing list archive at Nabble.com. >> >> ______________________________________________ >> R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see >> https://stat.ethz.ch/mailman/listinfo/r-help >> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html >> and provide commented, minimal, self-contained, reproducible code. > > David Winsemius > Alameda, CA, USA > > ______________________________________________ > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
