Hi thanks
Let say data are written like this: 1990-01-01 10:01:00 , 0.910 1990-01-01 10:03:00 , 0.905 Would it be ok to read it with theses lines or is better to use your way? tmp <- read.table("demo2.txt", sep = ",") z <- zoo(tmp[, 2], as.Date(as.chron(tmp[, 1]), format = "%Y-%m-%d %H:%M:%S")) regards -- View this message in context: http://r.789695.n4.nabble.com/working-with-zoo-time-index-tp2255804p2257222.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.