Dear Lars, In addition to looking at the relevant help pages, a nice thing about R is that the objects are there for you to examine. For example:
> mod <- lm(mpg ~ ., data=mtcars) > av <- anova(mod) > names(av) [1] "Df" "Sum Sq" "Mean Sq" "F value" "Pr(>F)" > str(av) Classes 'anova' and 'data.frame': 11 obs. of 5 variables: $ Df : int 1 1 1 1 1 1 1 1 1 1 ... $ Sum Sq : num 817.71 37.59 9.37 16.47 77.48 ... $ Mean Sq: num 817.71 37.59 9.37 16.47 77.48 ... $ F value: num 116.42 5.35 1.33 2.34 11.03 ... $ Pr(>F) : num 5.03e-10 3.09e-02 2.61e-01 1.41e-01 3.24e-03 ... - attr(*, "heading")= chr "Analysis of Variance Table\n" "Response: mpg" Thus, e.g., av$"Sum Sq" returns the sums of squares: > av$"Sum Sq" [1] 817.7129524 37.5939529 9.3709293 16.4674349 77.4757948 3.9493082 [7] 0.1297687 14.4742372 0.9717105 0.4066688 147.4944300 You could do the same thing with the object returned by summary(). I hope that this helps, John -------------------------------- John Fox, Professor Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox -------------------------------- > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Brinkmann, Lars > Sent: Saturday, December 08, 2007 4:09 AM > To: [EMAIL PROTECTED] > Subject: [R] How to extract numbers from ANOVA tables? > > I need to extract numbers (eg. estimates, standard errors > etc.) summarized in an ANOVA table or summary() table for > further calculations. Can somebody help me or refer me to the > needed resource on the web? > > [[alternative HTML version deleted]] > > ______________________________________________ > 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. > ______________________________________________ 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.
