Hi Berend I am looking for a table, # of times one element (out of 1, 2, 3) showed up, two elements, and all three.
I am trying, don't know if this works: > aa <- rle(a) > b <- aa$lengths[aa$values] > table(b) b 1 3 3 12 Mike On Sat, Jul 20, 2013 at 12:24 PM, Berend Hasselman <b...@xs4all.nl> wrote: > > On 20-07-2013, at 18:05, C W <tmrs...@gmail.com> wrote: > >> Hi R list, >> >> I have a sequence repeating 1:15 . Some numbers are deleted. I want >> to find how many times 1, 2, 3 appeared. >> Basically, I want to "grab" the beginning of the sequence and tally it up. >> >> R code: >> >>> vec <- c(1, 2, 3, 4, 5, 6, 7, 8, 13, 1, 2, 3, 5, 7, 8, 10, 12, 13, 14, >> 15, 1, 2, 3, 5, 6, 10, 12, 13, 1, 2, 3, 4, 5, 6, 7, 12, 13, 14, >> 15, 1, 2, 3, 6, 9, 10, 11, 13, 14, 1, 7, 10, 13, 1, 2, 3, 4, >> 6, 7, 9, 11, 14, 1, 2, 3, 5, 9, 10, 11, 12, 14, 1, 2, 3, 4, 1, >> 2, 3, 4, 11, 12, 14, 1, 2, 3, 4, 8, 11, 12, 1, 2, 3, 4, 5, 7, >> 8, 9, 11, 12, 15, 3, 14, 1, 2, 3, 6, 10, 11, 13, 14, 1) >> >>> a <- vec %in% c(1, 2, 3) >>> a >> [1] TRUE TRUE TRUE FALSE FALSE FALSE FALSE FALSE FALSE TRUE >> TRUE TRUE FALSE FALSE >> [15] FALSE FALSE FALSE FALSE FALSE FALSE TRUE TRUE TRUE FALSE >> FALSE FALSE FALSE FALSE >> [29] TRUE TRUE TRUE FALSE FALSE FALSE FALSE FALSE FALSE FALSE >> FALSE TRUE TRUE TRUE >> [43] FALSE FALSE FALSE FALSE FALSE FALSE TRUE FALSE FALSE FALSE >> TRUE TRUE TRUE FALSE >> [57] FALSE FALSE FALSE FALSE FALSE TRUE TRUE TRUE FALSE FALSE >> FALSE FALSE FALSE FALSE >> [71] TRUE TRUE TRUE FALSE TRUE TRUE TRUE FALSE FALSE FALSE >> FALSE TRUE TRUE TRUE >> [85] FALSE FALSE FALSE FALSE TRUE TRUE TRUE FALSE FALSE FALSE >> FALSE FALSE FALSE FALSE >> [99] FALSE TRUE FALSE TRUE TRUE TRUE FALSE FALSE FALSE FALSE FALSE TRUE >> >>> rle(a) >> Run Length Encoding >> lengths: int [1:29] 3 6 3 8 3 5 3 8 3 6 ... >> values : logi [1:29] TRUE FALSE TRUE FALSE TRUE FALSE ... >> >> What should I do after this? >> > > Well how about > > sum(a) > > or > > b <- rle(a) > sum(b$lengths[b$values]) > > Berend > >> Thanks, >> Mike >> >> ______________________________________________ >> 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.
