my dataset looks like : >df
VIX GLD FAS 1 2 4 5 2 8 9 10 3 56 9 98 .. continued the dataset has n observations which is fixed and i need to create a function : test <- function(variable name, value) -- this function has to insert the value under the respective variable and if the column length exceeds "n" then automatically the first value from the top of the variable should get deleted, the way we have in stacking-first in first out. Any help writing this function would be highly appreciated Thanks -- View this message in context: http://r.789695.n4.nabble.com/Real-time-dataset-tp3208473p3208473.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org 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.