Dear all, I have one problem to handle a large dataset... It looks like: "read" "no" "length" 2 2 144 7 7 47490 9 9 310944 11 11 10089 14 14 13152 17 17 27363 and so on There are 130000 rows
>From this table I need to make a table like 2_1 2 100 2_2 2 44 7_1 7 100 7_2 7 100 ... ... 7_474 7 100 7_475 7 90 9_1 9 100 9_2 9 100 and so on... In words: I want to divide the 3rd column by 100 to keep the length 100 and increasing no of rows needed, where no will be same for all increased rows, but the read will be changed like 2_1,2_2 and so on.. Please let me know if any one can help. Thanks a lot in advance. Best, Mitra. -- View this message in context: http://www.nabble.com/Help-processing-large-data-tp20716564p20716564.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.
