Hi all,
For some reason the messages keep getting rejected.
trying again...
As I understand the zoo package will aggregate dates and times, but
unclear how to tackle this problem.
I need to accomplish the following:
1. Generate a scatter plot of bat activity with dates on the X-axis
and time on the Y-axis.
include sunset and sunrise curves as an added part of graphic.
In Excel I have a kludged way to do this, but it is not exactly what
I need and the times on the Y axis do not display correctly due to
the 24:00 roll over to next date and would prefer to understand how
to do this using R so I can repeat it with multiple data sets for
multiple locations.
I removed the Graphic display as apparently the server refused the
massage with it.
I can email directly if anyone is able to assist or wished to see it.
A sample of the data format is below.
Any suggestion welcome.
Tnx.
The bat activity data is in the format below with the species name,
date and time the species was active.
Spec_code Date Time
Eptfus 6/4/03 22:44
Eptfus 6/4/03 22:44
Eptfus 6/9/03 21:59
Eptfus 6/10/03 3:24
Eptfus 6/13/03 0:22
Eptfus 6/13/03 3:24
Eptfus 6/17/03 0:03
Eptfus 6/17/03 2:43
Eptfus 6/17/03 21:59
The sunset-Sunrise data seen below is also straight forward:
Date Rise Set
6/1/2003 4:12 19:50
6/2/2003 4:11 19:51
6/3/2003 4:10 19:52
6/4/2003 4:10 19:53
6/5/2003 4:09 19:54
6/6/2003 4:09 19:54
6/7/2003 4:09 19:55
6/8/2003 4:08 19:56
6/9/2003 4:08 19:57
6/10/2003 4:08 19:57
6/11/2003 4:07 19:58
6/12/2003 4:07 19:58
6/13/2003 4:07 19:59
6/14/2003 4:07 19:59
6/15/2003 4:07 20:00
6/16/2003 4:07 20:00
6/17/2003 4:07 20:01
6/18/2003 4:07 20:01
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