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
herodote at oreka.com 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
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