Re: [R] correlating irregular time series

2005-11-14 Thread Christophe Pouzat
Hi Paul, Here is how an amateur statistician deals with this problem when analyzing spike trains from simultaneously recorded neurons. Start by estimating the hazard function h(t) of your several point processes (if you have a copy of MASS, check out the chapter 13, If you have a copy of Jim

Re: [R] correlating irregular time series

2005-11-14 Thread paul sorenson
I don't have the texts you mention but I get the general idea. The diagram I posted shows only a small fraction of the events I have. Thank you Christophe Pouzat wrote: Hi Paul, Here is how an amateur statistician deals with this problem when analyzing spike trains from simultaneously

Re: [R] correlating irregular time series

2005-11-14 Thread Christophe Pouzat
Paul, You can get a version of Lindsey's course at the following address: http://popgen.unimaas.nl/~jlindsey/manuscripts.html At the bottom of the page under heading Courses. Christophe. paul sorenson wrote: I don't have the texts you mention but I get the general idea. The diagram I

[R] correlating irregular time series

2005-11-13 Thread paul sorenson
I have some time stamped events that are supposed to be unrelated. I have plotted them and that assumption does not appear to be valid. http://metrak.com/tmp/sevents.png is a plot showing three sets of events over time. For the purpose of this exercise, the Y value is irrelevant. The series