Hi: Not sure, but perhaps you had something like this in mind:
y <- runif(100) w <- matrix(y, nrow = 10) # fills in column-wise v <- apply(w, 2, cumsum) plot(1:100, y, type = 'l', col = 'blue') lines(1:100, as.vector(v), type = 'l', col = 'red') Reshaping into a matrix and using apply() to produce column-wise cumulative sums seems like what you were after. The difference between the overall cumulative sum (of y) and the column-wise cumulative sums is shown in the graph. HTH, Dennis On Tue, Feb 1, 2011 at 1:51 AM, Surrey Jackson <surreyjack...@gmail.com>wrote: > Hello, > > I have some data where a number of events (the total amount varies) > occur at cumulating times, I would like to create a scatterplot > (easily achieved using plot etc) of these events (the events can > either be times using poxist or I can convert them into just seconds > which is probably easier to work with), however I would like the > events/times to re-begin plotting every 10th occurrence and start > being plotted again from 0 on the Y axis. The result would be a > scatte rplot that looks like it has lots of ups and downs in it, as > opposed to one that just keeps on going on up and up and up. This > would allow me to compare the time of the events across multiple > sessions of data. > > Now I can create a scatterplot of the first 10 occurrences and then > minus the 10th time from the next 10 occurrences so the times will be > plotted correctly on the Y axis. However I can't make them plot in > the 11:20 slot. > > I have read all the help files for plot, dotchart etc and can't figure it > out. > > I am after an elegant solution as I have many hundreds of data files > that I will need to do this for and I have been creating all my other > graphs and doing other anaylsis using a loop and all the files have > varying numbers of events to be plotted. > > Any help would be greatly appreciated. > > Regards > > Surrey Jackson > > ______________________________________________ > 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. > [[alternative HTML version deleted]] ______________________________________________ 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.
