[R] Question about comparison of nested models and F-statistics

2011-12-10 Thread олег ---
Hello,
I have a linear model with 10 regressors, and summary() gives me
F-statistics. After deleting a term with smallest p-value the new
model was obtained with F-statistics higher then it was for full
model. Does this mean that parsimonius model is better? The
distributions of dependent variable and residuals are not normal.
Thank you!

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Re: [R] Question about comparison of nested models and F-statistics

2011-12-10 Thread Bert Gunter
This is not a statistical help list. Post to stats.stackexchange.com
or a similar list to have someone tutor you in regression and explain
why what you are doing is likely to produce utter nonsense.

Or, better yet, get local statistical help in person. You also clearly
need to do some reading on your own.

-- Bert

On Sat, Dec 10, 2011 at 5:12 AM, олег --- fosge...@gmail.com wrote:
 Hello,
 I have a linear model with 10 regressors, and summary() gives me
 F-statistics. After deleting a term with smallest p-value the new
 model was obtained with F-statistics higher then it was for full
 model. Does this mean that parsimonius model is better? The
 distributions of dependent variable and residuals are not normal.
 Thank you!

 __
 R-help@r-project.org mailing list
 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.



-- 

Bert Gunter
Genentech Nonclinical Biostatistics

Internal Contact Info:
Phone: 467-7374
Website:
http://pharmadevelopment.roche.com/index/pdb/pdb-functional-groups/pdb-biostatistics/pdb-ncb-home.htm

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