Dear all, I have data of Battery Electric vehicle (BEV). I would like to extract data from every hour starting from 0.00 to 0.59, 1:00-1:59 for SOC(state of charge) start to end.
Some examples: I can extract data from SOC=0 and SOC=12 dt_2014[which(dt_2014$Starting_SoC_of_12==0 & dt_2014$Ending_SoC_of_12==12),] I can extract data from SOC=1 and SOC=12 dt_2014[which(dt_2014$Starting_SoC_of_12==1 & dt_2014$Ending_SoC_of_12==12),] and I would like to further categorise the data by hour and count how many cars from 0 state charge to 12 state charge at in that particular hour. Thank you so much for any help given. Some data > dput(dt_2014[1:10,]) structure(list(ï..CarID = c("GC10", "GC10", "GC10", "GC10", "GC10", "GC10", "GC10", "GC10", "GC10", "GC10"), BatteryChargeStartDate = c("16/2/2014 16:05", "16/2/2014 18:20", "17/2/2014 8:10", "18/2/2014 7:41", "18/2/2014 15:36", "18/2/2014 16:36", "18/2/2014 21:26", "19/2/2014 8:57", "19/2/2014 21:08", "20/2/2014 18:11"), BCStartTime = c("16:05", "18:20", "8:10", "7:41", "15:36", "16:36", "21:26", "8:57", "21:08", "18:11"), Year = c(2014L, 2014L, 2014L, 2014L, 2014L, 2014L, 2014L, 2014L, 2014L, 2014L), Month = c(2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L), Day = c(16L, 16L, 17L, 18L, 18L, 18L, 18L, 19L, 19L, 20L), BatteryChargeStopDate = c("16/2/2014 17:05", "16/2/2014 19:00", "17/2/2014 15:57", "18/2/2014 9:52", "18/2/2014 15:39", "18/2/2014 17:36", "19/2/2014 1:55", "19/2/2014 14:25", "20/2/2014 5:17", "20/2/2014 23:20" ), BCStopTime = c("17:05", "19:00", "15:57", "9:52", "15:39", "17:36", "1:55", "14:25", "5:17", "23:20"), Year2 = c(2014L, 2014L, 2014L, 2014L, 2014L, 2014L, 2014L, 2014L, 2014L, 2014L ), Month2 = c(2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L), Day2 = c(16L, 16L, 17L, 18L, 18L, 18L, 19L, 19L, 20L, 20L), Starting_SoC_of_12 = c(1L, 2L, 4L, 5L, 4L, 2L, 8L, 8L, 4L, 8L), Ending_SoC_of_12 = c(11L, 11L, 12L, 8L, 4L, 10L, 12L, 12L, 12L, 12L)), row.names = c(NA, 10L), class = "data.frame") -- *Roslinazairimah Zakaria* *Tel: +609-5492370; Fax. No.+609-5492766* *Email: roslina...@gmail.com <roslina...@gmail.com>* University Malaysia Pahang Lebuhraya Tun Razak, 26300 Gambang, Pahang, Malaysia [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.