Hi, if given the value of, say, 15000, I would like to be able to divide that value recursively by, say, 5, and to get a vector of a determined length, say 9, the last value being (set to) zero- i.e. like this:
15000 3000 600 120 24 4.8 0.96 0.192 0 These are in fact concentration values from an experiment. For my script, I get only the starting value (here 15000), and the factor by which concentration is divided for each well, the last one having, by definition, no antagonist at all. I have tried to use "seq", but it can "only" do positive or negative increment. I didn't either find a way with "rep", "sweep" etc. These function normally start from an existing vector, which is not the case here, I have only got a single value to start with. I suppose I could do something "loopy", but I'm sure there is a better way to do it. Thanks a lot for your help, hope the question is not too dumb... Anne-Marie ______________________________________________ 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.