Re: [R] Help processing large data

Is this what you want: > x <- read.table(textConnection('"read" "no" "length" + 2 2 144 + 7 7 47490 + 9 9 310944 + 11 11 10089 + 14 14 13152 + 17 17 27363 '), header=TRUE) > closeAllConnections() > result <- lapply(1:nrow(x), function(.indx){ + data.frame(read=paste(x$read[.indx], seq(x$length

[R] Help processing large data

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 13 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