[tlocoh-info] Response to : Sampling frequency graph (Cassandra Arkinstall)

[Wayne Marcus GETZ]

I agree completely with Damian.

If you are interested, here is a paper that considers mesoscale questions.



> On Nov 26, 2020, at 4:39 AM, Damian Lidgard <Damian.Lidgard at Dal.Ca> wrote:
> 
> I think this is less about T-LoCoH and perhaps more about how to approach the analysis. T-LoCoH’s strength is in using frequent data points to examine fine-scale temporal and spatial site use. I might be worthwhile to consider using a broad analysis for the two months based on 1 to 2 fixes per day (randomly choosing 1 to 2 data points in the second month) and the a finer scale analysis based on the second month of data (assuming you only have two months of data).
> 
> This suggestion of course is given without knowing what your questions are.
> 
> Damian
> 
>  =========================
> Damian C. Lidgard, PhD
> 
> Dalhousie University
> Halifax, NS Canada
> 
> 902 802 4575
> 
>> On 26-11-2020, at 7:00, tlocoh-info-request at lists.r-forge.r-project.org <mailto:tlocoh-info-request at lists.r-forge.r-project.org> wrote:
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>> Today's Topics:
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>>   1. Sampling frequency graph (Cassandra Arkinstall)
>> 
>> 
>> ----------------------------------------------------------------------
>> 
>> Message: 1
>> Date: Thu, 26 Nov 2020 15:10:24 +1000
>> From: Cassandra Arkinstall <cassandra.arkinstall at gmail.com <mailto:cassandra.arkinstall at gmail.com>>
>> To: tlocoh-info at lists.r-forge.r-project.org <mailto:tlocoh-info at lists.r-forge.r-project.org>
>> Subject: [tlocoh-info] Sampling frequency graph
>> Message-ID:
>>        <CADuu0cdXCrBYaQiynqxAFQLxu7PtBnxAjbPOg_y46VMAT8AZkQ at mail.gmail.com <mailto:CADuu0cdXCrBYaQiynqxAFQLxu7PtBnxAjbPOg_y46VMAT8AZkQ at mail.gmail.com>>
>> Content-Type: text/plain; charset="utf-8"
>> 
>> Hi all,
>> 
>> 
>> I am new to tLoCoH and have a question about the sampling frequency graphs.
>> I have GPS tracking data for bilbies however there are some gaps and
>> missing data for the first part of my study (due to antenna breakages).
>> This means I only have 1-2 fixes per day for the first month, and then
>> several fixes per day for the following month (as the antennas were
>> repaired).
>> 
>> 
>> 
>> This then affects my sampling frequency graphs (example attached), and I am
>> concerned that the points at a low sampling frequency will affect the
>> temporal analyses. Should I consider trimming these data points using
>> “lxy.thin.byfreq()”? Or is it best to keep them in?
>> 
>> 
>> Thanks in advance.
>> 
>> 
>> 
>> Kind regards,
>> 
>> Cass
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