I am running an expt that presents a point process input x and
measures a point process output y. The times of each event are
recorded. The lengths of the data records of x and y are necessarily
different, and can be different by a factor of 10. I would like to
save these data after each
On 10/23/2009 07:58 PM, William Simpson wrote:
I am running an expt that presents a point process input x and
measures a point process output y. The times of each event are
recorded. The lengths of the data records of x and y are necessarily
different, and can be different by a factor of 10. I
Jim Lemon wrote:
On 10/23/2009 07:58 PM, William Simpson wrote:
I am running an expt that presents a point process input x and
measures a point process output y. The times of each event are
recorded. The lengths of the data records of x and y are necessarily
different, and can be different by
The way you do it is to compute the cross-intensity function (you can
google this; a key name is David Brillinger). The general problem is
that of system identification for point processes.
Bill
On Fri, Oct 23, 2009 at 10:31 AM, Jim Lemon j...@bitwrit.com.au wrote:
On 10/23/2009 07:58 PM,
As I understand it, they don't come in pairs anyway.
Correct.
For the same reason
a data frame is just the wrong kind of data structure. If you don't want
separate data files, you can use one file with two columns where the
second column is (say) 1 for the x and 2 for the y.
Could you
Thanks Jim. BTW the times in x and y are in ascending order (time of
occurrence).
If I do it this way, how do I actually read the data in and store in
the file? Toy code, please.
Bill
Hi Bill,
xy-list(x=1:10,y=1:100)
Note that this cheerfully ignores how you are going to figure out which
William Simpson wrote:
As I understand it, they don't come in pairs anyway.
Correct.
For the same reason
a data frame is just the wrong kind of data structure. If you don't want
separate data files, you can use one file with two columns where the
second column is (say) 1 for the x and 2
OK thanks, I look at sleep and get it
Bill
On Fri, Oct 23, 2009 at 12:21 PM, Peter Dalgaard
p.dalga...@biostat.ku.dk wrote:
William Simpson wrote:
As I understand it, they don't come in pairs anyway.
Correct.
For the same reason
a data frame is just the wrong kind of data structure. If you
On 10/23/2009 10:07 PM, William Simpson wrote:
Thanks Jim. BTW the times in x and y are in ascending order (time of
occurrence).
If I do it this way, how do I actually read the data in and store in
the file? Toy code, please.
Hi Bill,
This seems a bit like some heartbeat data that I had
On 10/23/2009 10:07 PM, William Simpson wrote:
Thanks Jim. BTW the times in x and y are in ascending order (time of
occurrence).
If I do it this way, how do I actually read the data in and store in
the file? Toy code, please.
Hi Bill,
This seems a bit like some heartbeat data that I had to
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