Plotting a count process
Thank you for your advice, but this is not the exaxt thing i'm looking for http://robotics.caltech.edu/~zoran/Research/poisson/img1.png this picture gives an example what i want to get. instead of t0, t1, t2,.... i want to draw my dates. In my description i forgot the the horizontal line, which indicates the time between two dates each, sorry for that. regards andreas
Dieter Menne wrote:
<voodooochild <at> gmx.de> writes:
i want to plot a count process in the following way, but i don't know how i can do that. i have data for example x<-(0,2,6,2,8,4,.....) and dates y which is a vector of weekly dates for example (01/01/06, 08/01/06, 15/01/06, 22/01/06, ....), now i want to plot the y's an the horizontal axis. On each date the count process jumps upwards 1 unit, so the vertical axis is 0, 1, 2, 3, ...... the distance between the dates is shown in vector x, so for example the distance between 08/01/06 and 15/01/06 should be 2. maybe i can use some times series functions for doing this?
If I understand you correctly, this means plotting equidistant point against the cumulative sum. Forgetting about the dates now, this would do it. x = floor(pmax(rnorm(30,5,2),1)) xcum = cumsum(x) plot(xcum,1:30) Dieter
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