Hi Mr. Pedro I tried names(a) and it displayed the names as X, Y and Z.
rgds snvk On 8/25/05, Pedro J. Aphalo <[EMAIL PROTECTED]> wrote: > Hi, > > Did you try names(a) so see what are the names of the columns in the > dataframe? > > Hope this helps a little. > > Pedro. > > Krishna wrote: > > Hi All > > > > recently i faced an unknown problem while reading the data. Can > > someone help me in understanding why this happened. > > > > I have .txt file containing X, Y, Z variables. I used the command > > > > > >>a <- read.table("filename", header=TRUE) > > > > after reading the file i am able to view it by tryping a. but i am > > unable to access the variables in a, by giving the command a$X. > > > > > >>a$X > >>NULL > > > > > > this is the output it was showing. However the same i am able to > > access by giving a[[1]]. i tried changing the mode by issuing command > > a <- as.data.frame(a). But situation remains the same. > > > > look forward for experts suggestion on this. > > > > rgds > > > > snvk > > > > ______________________________________________ > > 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 > > > -- > ================================================================== > Pedro J. Aphalo > Department of Biological and Environmental Science > University of Jyväskylä > P.O. Box 35, 40351 JYVÄSKYLÄ, Finland > Phone +358 14 260 2339 > Mobile +358 50 3721504 > Fax +358 14 260 2321 > mailto:[EMAIL PROTECTED] > http://www.jyu.fi/~aphalo/ ,,,^..^,,, > ================================================================== > > ______________________________________________ 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