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 <amnakhan493 at gmail.com> 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 <brown_emu at yahoo.com> wrote:
> >
> > Could you post the output from
> >
> > str(data)
> >
> > ?
> >
> > Perhaps that will give us a clue.
> >
> > --- amna khan <amnakhan493 at gmail.com> 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 <gavin.simpson at ucl.ac.uk>
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
> > > >
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> > > >
> > > >
> > > >
> > >
> > >
> > > --
> > > AMINA SHAHZADI
> > > Department of Statistics
> > > GC University Lahore, Pakistan.
> > > Email:
> > > amnakhan493 at gmail.com
> > > amna_989 at hotmail.com
> > > amna_989 at yahoo.com
> > >
> > > [[alternative HTML version deleted]]
> > >
> > > ______________________________________________
> > > R-help at 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:
> amnakhan493 at gmail.com
> amna_989 at hotmail.com
>
____________________________________________________________________________________
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