Hello, I would like to know if R provides the similar function to produce the 4-in-1 graph ("Normal Plot of Residuals", "I Chart of Residuals", "Histogram of Residuals" & "Residuals vs Fits") as MiniTab. If do not have, could anyone please tell me how to produce above-mentioned individual chart? Your help is greatly appreciated. Best Regards, WeiQiang Li [[alternative HTML version deleted]]
you could use directly the plot function on an `lm' object, e.g., x <- runif(100, -3, 3) y <- 1 + 2*x + rnorm(100) m <- lm(y~x) par(mfrow=c(2,2)) plot(m) This doesn't produce the "I Chart" you wanted but it gives a very good picture about any strange behaviour of the residuals. I hope it helps. Best, Dimitris ---- Dimitris Rizopoulos Ph.D. Student Biostatistical Centre School of Public Health Catholic University of Leuven Address: Kapucijnenvoer 35, Leuven, Belgium Tel: +32/16/336899 Fax: +32/16/337015 Web: http://www.med.kuleuven.ac.be/biostat/ http://www.student.kuleuven.ac.be/~m0390867/dimitris.htm ----- Original Message ----- From: <WeiQiang.Li at seagate.com> To: <r-help at stat.math.ethz.ch> Sent: Monday, February 28, 2005 10:35 AM Subject: [R] How to plot> Hello, > > I would like to know if R provides the similar function to > produce > the 4-in-1 graph ("Normal Plot of Residuals", "I Chart of > Residuals", > "Histogram of Residuals" & "Residuals vs Fits") as MiniTab. If do > not > have, could anyone please tell me how to produce above-mentioned > individual chart? > > Your help is greatly appreciated. > > Best Regards, > WeiQiang Li > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help at stat.math.ethz.ch mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide! > http://www.R-project.org/posting-guide.html >
On 28 Feb 2005 at 17:35, WeiQiang.Li at seagate.com wrote:> Hello, > > I would like to know if R provides the similar function to > produce > the 4-in-1 graph ("Normal Plot of Residuals", "I Chart of Residuals", > "Histogram of Residuals" & "Residuals vs Fits") as MiniTab. If do not > have, could anyone please tell me how to produce above-mentioned > individual chart?Hi> x<-rnorm(10) > y<-10*x+5+rnorm(10) > plot(x,y) > fit<-lm(y~x) > par(mfrow=c(2,2)) > qqnorm(resid(fit)) > hist(resid(fit)) > plot(fitted(fit),resid(fit)) >for three plots. You can try to construct I Chart yourself. Go through help page of lm and you can find some other options how to plot your lm result. Cheers Petr> > Your help is greatly appreciated. > > Best Regards, > WeiQiang Li > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help at stat.math.ethz.ch mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide! > http://www.R-project.org/posting-guide.htmlPetr Pikal petr.pikal at precheza.cz