Re: [R] R is not reading(?) my data properly
On 09/02/2008 11:37 AM, ONKELINX, Thierry wrote: > Alexander, > > Learn to use the data argument. E.g. > > plot(rgnpc, incmean, data = pol572a1) That won't work. The data arg to plot (and most other functions that have one) requires a formula, not a simple specification of x and y. You'd need plot(incmean ~ rgnpc, data = po1572a1) (The reason for this limitation is that plot needs to evaluate its first argument to know what method to call. It can evaluate the formula "incmean ~ rgnpc", but can't evaluate the nonexistent "rgnpc". Duncan Murdoch > 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. __ 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.
Re: [R] R is not reading(?) my data properly
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.
[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.