Hi, just a simple question. Assumed i have a vector,
FALSE TRUE TRUE TRUE FALSE TRUE FALSE TRUE FALSE or NA 1 1 1 NA 1 NA 1 NA what i need is the position where an element is the same - three (or in general multiple) times in a row. in this case: i want to get the position where it is TRUE TRUE TRUE or 1 1 1 it doesn't matter if it is the first, middle or last element. So the output could be 2 or 3 or 4 My idea would be to lag the vector and calc differences... but i would prefer any build in (or time saving) function. :) thanks, Nico ______________________________________________ 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.