Re: [R] concatenate data frame
Having no idea what the object no is, or what the object off_set is, it is difficult to understand what you are trying to do. Perhaps if you substituted simple numbers in the example, such as tab[ 1:5, 15] it would be easier to understand. Perhaps what you really want is cbind() or rbind(), not c(). Probably, it would be better to use ncol(tab) rather than length(tab). -Don At 6:38 PM +0100 12/7/05, [EMAIL PROTECTED] wrote: hi all Here is a small part of my code: tab_tmp-tab[1:(no[off_set[i-1]+1]+(no[off_set[i]+1]-no[off_set[i-1]+1])),length(tab)]; tab_tmp1-tab[(no[off_set[i-1]+1]+(no[off_set[i]+1]-no[off_set[i-1]+1])):length(TotalFillTimeHours),length(tab)]; tab-c(tab_tmp,tab_tmp1); attach(tab); Here is the output: Error in attach(tab) : attach only works for lists and data frames Execution halted How do i concatenate them in order to keep the data frame structure? thks for your help guillaume __ 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 -- -- Don MacQueen Environmental Protection Department Lawrence Livermore National Laboratory Livermore, CA, USA __ 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
[R] concatenate data frame
hi all Here is a small part of my code: tab_tmp-tab[1:(no[off_set[i-1]+1]+(no[off_set[i]+1]-no[off_set[i-1]+1])),length(tab)]; tab_tmp1-tab[(no[off_set[i-1]+1]+(no[off_set[i]+1]-no[off_set[i-1]+1])):length(TotalFillTimeHours),length(tab)]; tab-c(tab_tmp,tab_tmp1); attach(tab); Here is the output: Error in attach(tab) : attach only works for lists and data frames Execution halted How do i concatenate them in order to keep the data frame structure? thks for your help guillaume __ 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
Re: [R] concatenate data frame
Guillaume, I assume that 'tab' is a data frame and that, for some unspecified reason, you want to get two subsets of the last column of tab, overlapping one case, and coercing the final result to a data frame. If that is correct, then as.data.frame(c(tab_tmp, tab_tmp1)) will give you a data frame. Alternatively, check out the 'drop =' argument to '[.data.frame' and then rbind your pieces. Peter Ehlers [EMAIL PROTECTED] wrote: hi all Here is a small part of my code: tab_tmp-tab[1:(no[off_set[i-1]+1]+(no[off_set[i]+1]-no[off_set[i-1]+1])),length(tab)]; tab_tmp1-tab[(no[off_set[i-1]+1]+(no[off_set[i]+1]-no[off_set[i-1]+1])):length(TotalFillTimeHours),length(tab)]; tab-c(tab_tmp,tab_tmp1); attach(tab); Here is the output: Error in attach(tab) : attach only works for lists and data frames Execution halted How do i concatenate them in order to keep the data frame structure? thks for your help guillaume __ 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 __ 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
