Dear Csanad, PLEASE do read the posting guide http://www.R-project.org/posting-guide.html<http://www.r-project.org/posting-guide.html> Reproducible code/problem are welcome. By the way, who you believe is right?
bests milton On Sat, Jan 9, 2010 at 5:40 PM, Csanád Bertók <bertok.csa...@gmail.com>wrote: > Hello, > > I was doing a linear regression with the following formula: > *lm(y~x+0)*, so it passes through the origin. But when I called the summary > of the regression i saw that R squared is abnormally high (it's a lot lower > in other programs such as SigmaPlot and MS Excel).The manual explained the > cause of the difference (because of the different computing method), but > what should I do to get the same R^2 in excel and R? > > WITHOUT PASSING THROUGH THE ORIGIN: > R^2: Multiple R-squared: 0.9711, Adjusted R-squared: 0.9654 > In MS Excel: 0,9711 > > *So it's OK.* > > > WITH PASSING THROUGH THE ORIGIN: > Multiple R-squared: 0.9848, Adjusted R-squared: 0.9822 > In MS Excel: 0,8907 > > *So almost 10% difference.* > > Thank you for your help. > > Csanad Bertok, Hungary > > [[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<http://www.r-project.org/posting-guide.html> > and provide commented, minimal, self-contained, reproducible code. > [[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.
