Ted: Yes. You're probably right, and I'm probably wrong. I did not read carefully enough. Impossible to know for sure with such an ill-posed query, though.
Cheers, Bert Bert Gunter Genentech Nonclinical Biostatistics (650) 467-7374 "Data is not information. Information is not knowledge. And knowledge is certainly not wisdom." H. Gilbert Welch On Sun, Mar 30, 2014 at 2:12 PM, Ted Harding <ted.hard...@wlandres.net> wrote: > I suspect the problem may be with the structure of the data. > > Si Qi L wrote: > [...] > acc1<- lm(data$acc ~ dummy + data$Reqloanamount + data$Code + > data$Code.1 + data$EmpNetMonthlyPay + data$Customer_Age + data$RTI) > [...] > These attributes are all numerical except the "acc"(factors) > [...] > > If, as he implies, the "acc" variable in "data" is a factor, > then lm() will not enjoy fitting an lm where the dependent > variables (response) is a factor! > > Just a shot in the dark ... > Ted. > > On 30-Mar-2014 18:46:27 Bert Gunter wrote: >> 1. Post in plain text, not HTML. >> >> 2. Read ?lm and note the data argument. Use it in your lm call instead >> of all the xxxx$data extractions. >> >> 3. Your problem is with the summary() call, so read ?summary.lm. Learn >> about S3 methods if you do not know where the ".lm" part is coming >> from by reading the "Introduction to R " tutorial that ships with R, >> which you should have read already anyway. >> >> Cheers, >> Bert >> >> Bert Gunter >> Genentech Nonclinical Biostatistics >> (650) 467-7374 >> >> "Data is not information. Information is not knowledge. And knowledge >> is certainly not wisdom." >> H. Gilbert Welch >> >> >> >> >> On Sun, Mar 30, 2014 at 9:43 AM, Frank Schwidom <schwi...@gmx.net> wrote: >>> Please provide some data from your variable data. >>> >>> Show the output of dput( data) or an subset >>> of data which leads toe the specific error. >>> >>> Regards >>> >>> >>> On Sun, Mar 30, 2014 at 02:23:09PM +0100, Si Qi L. wrote: >>>> Hi >>>> >>>> I have a problem with linear regression. This is my codes: >>>> >>>> acc1<- lm(data$acc ~ dummy + data$Reqloanamount + data$Code + data$Code.1 + >>>> data$EmpNetMonthlyPay + data$Customer_Age + data$RTI) >>>> summary(acc1) >>>> >>>> These attributes are all numerical except the "acc"(factors), so how can I >>>> fix the problem R showed me? can anyone please help me out? Many thanks! >>>> >>>> But the R shows: >>>> >>>> Residuals:Error in quantile.default(resid) : factors are not allowedIn >>>> addition: Warning message:In Ops.factor(r, 2) : ^ not meaningful for >>>> factors >>>> >>>> [[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. > > ------------------------------------------------- > E-Mail: (Ted Harding) <ted.hard...@wlandres.net> > Date: 30-Mar-2014 Time: 21:12:16 > This message was sent by XFMail > > ______________________________________________ > 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.
