Hello, I have a csv with 5months of hourly data for 4 years. I would like to get 9am, 12pm and 3pm from each day and create a subset or a new data frame that I can analyze. The time are from hour 0-23 for each day. I am not sure how to create a loop which will take out each of these hours and create a subset.
I was thinking of doing a for loop using the row number since: 9am= row 10 12pm= row 13 3pm= row 16 trying to loop through to extract these 3 times each day. n=length(date_stamp) for (i in i:n) { m= 10 i= 1 new1= mv[m,] i= i+1 m= m+3 ##m+18 at row 16? } I need some help creating a loop through this! Thank you! -- View this message in context: http://r.789695.n4.nabble.com/Selecting-3-different-hours-in-a-day-tp4015010p4015010.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.