Re: [R] gaps in time series

2010-03-15 Thread Gabor Grothendieck
There is a new FAQ #13 in the zoo-faq vignette in the development version of the zoo package which illustrates several approaches to this (all of which work in the current version of zoo as well). See: http://pages.citebite.com/l2m2b3i4k5fnv On Mon, Mar 15, 2010 at 1:02 PM, Joe Calderon wrote:

Re: [R] gaps in time series

2010-03-15 Thread Henrique Dallazuanna
Try this: x V1 V2 1 2010-03-01 9 2 2010-03-03 17 3 2010-03-04 2 4 2010-03-05 9 5 2010-03-07 3 rng <- range(as.Date(x$V1)) with(merge(data.frame(V1 = seq(rng[1], rng[2], by = 'day')), x, all = TRUE), aggregate(V2, list(V1), FUN = sum, na.rm = TRUE)) On Mon, Mar 15, 2010 at 2

[R] gaps in time series

2010-03-15 Thread Joe Calderon
hello *, im new to the list (and R in general), i have a problem that im hoping someone can help me solve. i have data that i want to turn into a time series per day, ex. 2010-03-01 9 2010-03-03 17 2010-03-04 2 2010-03-05 9 2010-03-07 3 is there an easy way to fill in the gaps for the m

Re: [R] Gaps in time series.

2008-08-03 Thread Gabor Grothendieck
If you are using zoo for this you can do: library(zoo) set.seed(1) x <- zoo(rnorm(7), as.numeric(1:7)) y <- zoo(rnorm(4), c(1, 2, 6, 7)) xy <- merge(x,y) xy$y - xy$x # or if you just want the difference at times existing in both y - x On Sat, Aug 2, 2008 at 5:16 PM, <[EMAIL PROTECTED]> wrote:

Re: [R] Gaps in time series.

2008-08-02 Thread Prof Brian Ripley
R does not allow 'gaps' in its class "ts". Irregular time series are covered in several packages, including tseries, its and zoo. On Sat, 2 Aug 2008, [EMAIL PROTECTED] wrote: I like the fact that in subtracting two time series objects that there is some effort to align the series. So if I ha

[R] Gaps in time series.

2008-08-02 Thread rkevinburton
I like the fact that in subtracting two time series objects that there is some effort to align the series. So if I have a time series of that begins at 1 and one that begins at 2 a subtraction operation makes sure that the proper values are subtracted. But I am unclear as to the best way to buil