Hello R users! I am trying to create a time series in R with two variables, precipitation and wind direction vs Date/Time.
I am looking for suggestions and maybe even sample code. My workbook is called "Sandy" and has columns with Date/Time, Raindall_cm, Wind Direction in both degree format (0-359) and in character form (N, NW, S, SW, SE, E, NE, NW). I have done some reading for it on stackoverflow and other sites but not making head way. I will be graphing with ggplot most likely and am a beginner in R, self taught from books and online resources. This is the code I have and a small peak into the data. Sandy<-read.csv("Sandy.csv", header=TRUE, sep=",",stringsAsFactors=FALSE) > head(Sandy) Deal1 Rainfall_cm Wind_Direction1 Wind_Direction2 1 10/22/2012 0:00 0 296 W 2 10/22/2012 0:15 0 317 NW 3 10/22/2012 0:30 0 323 NW 4 10/22/2012 0:45 0 323 NW 5 10/22/2012 1:00 0 326 NW 6 10/22/2012 1:15 0 326 NW > class(Sandy) [1] "data.frame" > str(Sandy) 'data.frame': 1832 obs. of 4 variables: $ Deal1 : chr "10/22/2012 0:00" "10/22/2012 0:15" "10/22/2012 0:30" "10/22/2012 0:45" ... $ Rainfall_cm : num 0 0 0 0 0 0 0 0 0 0 ... $ Wind_Direction: num 296 317 323 323 326 326 $ Wind_Direction: chr "W" "NW" "NW" "NW" ... > require(ggplot2) Loading required package: ggplot2 # this graph does the precipitation vs time graph, but not the wind > ggplot(Sandy, aes(x = Deal1, y = Rainfall_cm, group = 1)) + geom_line(stat = "identity") Ideally I want it to have the precipitation graph vs time, then wind vs time on the same graph. I would like the wind direction to be arrows pointing in the designated direction (i.e. North points north). Thank you! [[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.