Not for me. > x <- 1:100 > x.ts <- ts(x, start = 1, frequency = 4) > frequency(x.ts) [1] 4
On Fri, Nov 20, 2009 at 6:21 PM, Samik Raychaudhuri <sam...@gmail.com> wrote: > Thanks Gabor. Even after doing as you suggested, when I check the frequency > of x, it still shows up as 1. I would have expected it to be 4 now. >> x.ts <- ts(x, start=1, frequency=4) >> frequency(x) > [1] 1 > > On 11/20/2009 4:05 PM, Gabor Grothendieck wrote: >> >> The first two components of the tsp vector are in time units as >> mentioned in ?tsp . Thus you would want: >> >> >>> >>> x <- 1:100 >>> tsp(x) <- c(1, 25.75, 4) >>> >> >> but normally you don't have to set it explicitly in the first place. >> Just use ts: >> >> >>> >>> x <- 1:100 >>> x.ts <- ts(x, start = 1, frequency = 4) >>> tsp(x.ts) >>> >> >> [1] 1.00 25.75 4.00 >> >>> >>> x.ts >>> >> >> Qtr1 Qtr2 Qtr3 Qtr4 >> 1 1 2 3 4 >> 2 5 6 7 8 >> 3 9 10 11 12 >> 4 13 14 15 16 >> 5 17 18 19 20 >> 6 21 22 23 24 >> 7 25 26 27 28 >> 8 29 30 31 32 >> 9 33 34 35 36 >> 10 37 38 39 40 >> 11 41 42 43 44 >> 12 45 46 47 48 >> 13 49 50 51 52 >> 14 53 54 55 56 >> 15 57 58 59 60 >> 16 61 62 63 64 >> 17 65 66 67 68 >> 18 69 70 71 72 >> 19 73 74 75 76 >> 20 77 78 79 80 >> 21 81 82 83 84 >> 22 85 86 87 88 >> 23 89 90 91 92 >> 24 93 94 95 96 >> 25 97 98 99 100 >> >> >> On Fri, Nov 20, 2009 at 5:53 PM, Samik Raychaudhuri <sam...@gmail.com> >> wrote: >> >>> >>> Hello, >>> I am wondering how I should set up the tsp attribute (available through >>> attr(x, "tsp")) of a dataset x? Let's assume that x has 100 points, and I >>> want to set the frequency to 4. >>> I tried: >>> >>>> >>>> attr(x,"tsp")<-c(1,100,4) >>>> >>> >>> Error in attr(x, "tsp") <- c(1, 100, 4) : >>> invalid time series parameters specified >>> Is there any other way to set the frequency of the data? >>> Thanks. >>> -Samik >>> >>> ______________________________________________ >>> 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. >>> >>> > > ______________________________________________ > 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. > ______________________________________________ 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.
