Alexander, Learn to use the data argument. E.g.
plot(rgnpc, incmean, data = pol572a1) Model <- lm(incmean ~ rgnpc, data = pol572a1) to get the fitted values: Model$fitted HTH, Thierry PS It seems to me that you might want to read a good introduction into R. ------------------------------------------------------------------------ ---- ir. Thierry Onkelinx Instituut voor natuur- en bosonderzoek / Research Institute for Nature and Forest Cel biometrie, methodologie en kwaliteitszorg / Section biometrics, methodology and quality assurance Gaverstraat 4 9500 Geraardsbergen Belgium tel. + 32 54/436 185 [EMAIL PROTECTED] www.inbo.be Do not put your faith in what statistics say until you have carefully considered what they do not say. ~William W. Watt A statistical analysis, properly conducted, is a delicate dissection of uncertainties, a surgery of suppositions. ~M.J.Moroney -----Oorspronkelijk bericht----- Van: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Namens Alexander Ovodenko Verzonden: zaterdag 9 februari 2008 17:23 Aan: r-help@r-project.org Onderwerp: [R] R is not reading(?) my data properly Thanks for the replies to my prior question. My problem is that R always says object not found when I enter a variable name into a command. I converted a Stata file into an Rdata file by first loading the foreign package by entering require(foreign) Then I asked R to read the Stata file by entering pol572a1<- read.dta("C:\\alex\\Graduate Coursework\\Pol 572\\pol572a1.dta") So now I can do a few things with the data, but I am only able to do so by entering with(pol572a1, before typing another command. So I enter the following for a scatter plot: with(pol572a1, plot(rgnpc, incmean)) When I run a simple linear regression, I enter the following: with(pol572a1, lm(incmean~rgnpc)) But when try to get a fitted line, I enter the following: with(pol572a1, lm( share.gnp)<-lm(incmean~rgnpc)) But I get the following error message: Error in lm(share.gnp) <- lm(incmean ~ rgnpc) : object "share.gnp" not found So what should I do to get R to read the dataframe in the ordinary way with the usual command? I am willing to scrap this dataframe and use the original Stata file to start over, as long as that resolves the problem. Thanks! Alex [[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.