First, type names(msub) and then type cn and compare the output. Probably, you will find a name in cn that is not among the names of msub.
To maybe make it easier to see the missing column(s), you can type setdiff(cn, names(msub)) The expression msub[,cn] is intended to select columns from msub. That error message means that you are trying to select one or more columns that are not there. Or perhaps Bert Gunter is correct, and it should be msub[,'cn'] but I believe that if that were the case the error message would likely be different. Without more information we can't be sure. -Don -- Don MacQueen Lawrence Livermore National Laboratory 7000 East Ave., L-627 Livermore, CA 94550 925-423-1062 On 5/4/16, 6:05 AM, "R-help on behalf of ch.elahe via R-help" <r-help-boun...@r-project.org on behalf of r-help@r-project.org> wrote: > >Hi all, >I know it seems simple but I am trying to copy a code and I don't know >what is the problem with this command! > > msubsub=msub[,cn] > >the error I get is : error in '[.data.frame '(msub, ,cn) : undefined >columns selected > >Thanks for any help, >Elahe > >______________________________________________ >R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see >https://secure-web.cisco.com/17LbfsJ6l1TxAGGDaZPJaqSjzCIWn5E9CwPSSMrKL6TmF >nzxq4NMk2_I5ZoRND9U7-DVdKRI4gQq-ksFm42c_Y4YLWER6RjmX7KA43TlJE090H6BW03h2ch >R-AjcGVBd7OkbsupK4ILVvkOhZEs4oearHg3fxw5eGd1HheF2ZmV23Gk8iUz73qq3xABMYDqRs >MimloONz77mr0nVciORpjobMGuDvIH69DttdwbXnkLyVgrlscdiOjTp_LjcdJMSFKqMjepMDxH >iQGQfThQ4q3l5ZjSUts8soTR8Bg5R722f-4WJkevdYYreIEU3i0aH64_AdN7Hhn9lHL1MUOm0K >Mg0IV4twClhcRjs7Bf5Qf9M/https%3A%2F%2Fstat.ethz.ch%2Fmailman%2Flistinfo%2F >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 -- To UNSUBSCRIBE and more, see 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.
