Hello, I have a dataset containing Date Time, Air Temperature, PPFD, Sol Temperature... The first data are false so I would like to extract the other ones. I've tried : >data1<-subset(data,DateTime>=as.POSIXct("2017-01-10 11:00:00",format="%Y-%m-%d %H:%M:%S"),select=c(DateTime,PPFD_Avg,Air_Temp_Avg,RH_Avg,Soil_Temp_Avg)) But I still have 4 rows with data from 2017-01-10 10:00:00 to 2017-01-10 10:45:00 and I don't understand why.
Does anyone could help me please. Thanks, Elise LIKILIKI [[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.