Usage Summary 0?

questions concerning anlysis/theory using program DENSITY and R package secr. Focus on spatially-explicit analysis.

Usage Summary 0?

Postby ctlamb » Tue Nov 24, 2015 8:12 pm

Hello,

Just making sure I'm on the right track here. My input data follows this structure, where Usage is a single column depicting the usage of trap X for each of 5 sessions:

Code: Select all
#Detector   UTM_Easting   UTM_Northing   Usage   Trap_Type
s0139   666400   5509565   11011   / RT
s0143   668084   5489037   00111   / RT
s0145   669165   5488961   11101   / RT


I've input data as such:
Code: Select all
bearCH <- read.capthist("AllSRGBP_CapData.txt", trapfiles, detector ="proximity",
                        covname = 'Sex', trapcov = 'HTorRT',binary.usage = TRUE)



I have triple checked and I have no Usage values of 00000, yet the summary states that I have a usage of this value.

Code: Select all
$`2014`
Object class      traps
Detector type     proximity
Detector number   182
Average spacing   1289.264 m
x-range           633243 669165 m
y-range           5471935 5605408 m
Usage range by occasion
    1 2 3 4 5
min 0 0 0 0 0
max 1 1 1 1 1


Thoughts?

Cheers,
C
ctlamb
 
Posts: 56
Joined: Mon Nov 04, 2013 9:44 pm

Re: Usage Summary 0?

Postby murray.efford » Tue Nov 24, 2015 8:34 pm

The usage summary is by occasion, confirming in your case that on each occasion there were both used and unused detectors. So I think you're on the right track.
Murray
murray.efford
 
Posts: 686
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Location: Dunedin, New Zealand

Re: Usage Summary 0?

Postby ctlamb » Tue Nov 24, 2015 10:10 pm

Ah, thanks for that, Murray.

C
ctlamb
 
Posts: 56
Joined: Mon Nov 04, 2013 9:44 pm


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