It turns out that "-" and " " (space) are not valid variable names. You can get around that in two ways:
============== names(Monsoon)[2] <- "S.Sharif" names(Monsoon)[8] <- "Islamabad.AP" attach(Monsoon) S.Sharif Islamabad.AP detach(Monsoon) and do the same for other variable names that contain "-" or " " characters. ============= The other way is to enclose the names in ``. For instance: attach(Monsoon) `S-Sharif` `Islamabad AP` detach(Monsoon) Here is my example in which it works: > x <- list(1:5,6:8) > names(x) <- c("S-Sharif","Peshawar") > str(x) List of 2 $ S-Sharif: int [1:5] 1 2 3 4 5 $ Peshawar: int [1:3] 6 7 8 > attach(x) > `S-Sharif` [1] 1 2 3 4 5 > detach(x) --- amna khan <[EMAIL PROTECTED]> wrote: > Yes Sir > I am sending u the clue for data. > > > str(Monsoon) > List of 23 > $ Dir : num [1:40] 72.4 60.7 52.1..... > $ S-Sharif : num [1:55] 23.6 93.5 36.3 ...... > $ Peshawar : num [1:57] 54.4 27.7 ....... > $ Kakul : num [1:54] 50.3 116.1 ... > $ Balakot : num [1:47] 218.2 76.5 ... > $ Parachinar : num [1:40] 41.4 37.6 62.2... > $ Kohat : num [1:53] 50.8 93.2 94.5 ... > $ Islamabad AP : num [1:48] 140.2 69.3... > $ Murree : num [1:47] 130.0 131.3 74.4 ... > $ Islamabad SRRC: num [1:24] 172.2 82.3 150.1 ... > $ Mian Wali : num [1:48] 80.5 48.5 56.6 43.2 ... > $ Jhelum : num [1:57] 111.8 82.3 53.8 94.7 ... > $ Sialkot : num [1:55] 62.7 126.0 90.7 ... > $ D-I Khan : num [1:57] 24.9 40.6 34.3 ... > $ Faisalabad : num [1:56] 79.2 43.9 55.4 ... > $ Lahore : num [1:60] 32.5 81.5 28.7 ... > > when I attach the data file and access the site "S-Sharif" or D-I Khan" or > "Mian Wali" then error messages occur. > > Please help in this regard. > > Thank You > > > On 7/23/07, Stephen Tucker <[EMAIL PROTECTED]> wrote: > > > > Could you post the output from > > > > str(data) > > > > ? > > > > Perhaps that will give us a clue. > > > > --- amna khan <[EMAIL PROTECTED]> wrote: > > > > > Sir the station name "S.Sharif" exists in the data but still the error > > is > > > ocurring of being not found. > > > Please help in this regard. > > > > > > > > > On 7/22/07, Gavin Simpson <[EMAIL PROTECTED]> wrote: > > > > > > > > On Sun, 2007-07-22 at 03:25 -0700, amna khan wrote: > > > > > Hi Sir > > > > > I have made a data set having 23 stations of rainfall. > > > > > when I use the attach function to approach indevidual stations then > > > > > following error occurr. > > > > > > > > > > *>attach(data)* > > > > > *>S.Sharif #S.Sharif is the station name which has 50 data > > values* > > > > > *Error: object "S.Sharif" not found* > > > > > Now how to solve this problem. > > > > > > > > Then you don't have a column named exactly "S.Sharif" in your object > > > > "data". > > > > > > > > What does str(data) and names(data) tell you about the columns in > your > > > > data set? If looking at these doesn't help you, post the output from > > > > str(data) and names(data) and someone might be able to help. > > > > > > > > You should always check that R has imported the data in the way you > > > > expect; just because you think there is something in there called > > > > S.Sharif doesn't mean R sees it that way. > > > > > > > > You also seem to have included the R-Help email address twice in the > > To: > > > > header of your email - once is sufficient. > > > > > > > > G > > > > > > > > > Thank You > > > > > Regards > > > > > > > > > -- > > > > %~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~% > > > > Gavin Simpson [t] +44 (0)20 7679 0522 > > > > ECRC, UCL Geography, [f] +44 (0)20 7679 0565 > > > > Pearson Building, [e] gavin.simpsonATNOSPAMucl.ac.uk > > > > Gower Street, London [w] http://www.ucl.ac.uk/~ucfagls/ > > > > UK. WC1E 6BT. [w] http://www.freshwaters.org.uk > > > > %~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~% > > > > > > > > > > > > > > > > > > > > > -- > > > AMINA SHAHZADI > > > Department of Statistics > > > GC University Lahore, Pakistan. > > > Email: > > > [EMAIL PROTECTED] > > > [EMAIL PROTECTED] > > > [EMAIL PROTECTED] > > > > > > [[alternative HTML version deleted]] > > > > > > ______________________________________________ > > > R-help@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 > > > and provide commented, minimal, self-contained, reproducible code. > > > > > > > > > > > > > > > > ____________________________________________________________________________________ > > news, photos & more. > > http://mobile.yahoo.com/go?refer=1GNXIC > > > > > > -- > AMINA SHAHZADI > Department of Statistics > GC University Lahore, Pakistan. > Email: > [EMAIL PROTECTED] > [EMAIL PROTECTED] > ____________________________________________________________________________________ Pinpoint customers who are looking for what you sell. ______________________________________________ R-help@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 and provide commented, minimal, self-contained, reproducible code.