I imagine this is in the documentation somewhere but I haven't been able to find it. I have a data frame (octets transmitted on a network interface, a sample is appended) that I wish to convert into a time series. The as.ts is close to what I want but not quite right. e.g. > octets <- read.table( "sample/time-series/typical-octets-in.data", header = TRUE ); > octet.series <- as.ts( octets ) > plot( octet.series ) This produces three plots: one each for the three variables, timestamp, maximum, average. Of course, there is no regular interval. I would to have a conversion fuction that aggregates the data frames tuples into samples in the time series. Something like... > octet.series <- x.ts( data = octets, times = 1, colums = c(2,3), deltat = 120, aggregate = c("max","mean" ) ); timestamp maximum average 1037669760 1.3262000000e+04 1.1481950000e+04 1037670000 1.9400200000e+04 1.4238516667e+04 1037670240 2.0456266667e+04 1.6628133333e+04 1037670480 2.1213200000e+04 1.9318616667e+04 1037670720 1.9905533333e+04 1.6954866667e+04 ... 1037718480 1.8389866667e+04 1.7671633333e+04 1037718720 1.8000000000e+04 1.4151000000e+04 -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._