Message-ID: <52967ED0.2090306@ase-research.org>
Date: 2013-11-27T23:22:56Z
From: Mathieu Basille
Subject: mcp calculation
In-Reply-To: <1385591474760-7585219.post@n2.nabble.com>
Dear Lutfor,
It should work out of the box with the current version of adehabitatHR,
which does not rely on gpclib for MCP estimations. Here is an example using
R 3.0.2 and adehabitatHR 0.4.10:
## Load adehabitatHR
library(adehabitatHR)
## This give me:
#
# Loading required package: sp
# Loading required package: deldir
# deldir 0.1-1
# Loading required package: ade4
#
# Attaching package: ?ade4?
#
# The following object is masked from ?package:base?:
#
# within
#
# Loading required package: adehabitatMA
# Loading required package: adehabitatLT
# Loading required package: CircStats
# Loading required package: MASS
# Loading required package: boot
#
## As you can see, gpclib is not loaded.
## Load example data
data(puechabonsp)
rel <- puechabonsp$relocs
## Estimates the MCP
cp <- mcp(rel[,1])
## The home-range size
as.data.frame(cp)
# id area
# Brock Brock 22.64670
# Calou Calou 41.68815
# Chou Chou 71.93205
# Jean Jean 55.88415
## Computation of the home-range size:
mcp.area(rel[,1])
# Brock Calou Chou Jean
# 20 2.01000 8.06000 15.74195 1.13685
# 25 2.05565 9.96440 16.11330 1.48680
# 30 2.44080 13.27520 16.67075 1.69070
# 35 6.46570 13.65330 18.04590 2.33475
# 40 7.01845 14.88035 22.65340 4.09565
# ...
Hope this helps,
Mathieu.
Le 11/27/2013 05:31 PM, Lutfor a ?crit :
> Dear forum members,
>
> Today, I upgraded my R with 3.0.2. I was going to use my old code for MCP
> calculation using adehabitat. But when I was going use mcp.area calculation
> it says, i do need gpclib. Unfortunately new version of R don't have gpclib
> packages. I was trying to do with adehabitatHR but now luck yet. could
> anyone help to calculated mcp.area from my data.
>
> I have used following code for my calculation.
>
> mcpdata1<-read.csv("DataMCPKernel.csv",header=T)
> attach(mcpdata1)
>
> XY=mcpdata1[,c("x","y")]
> id=mcpdata1[,c("Stage")]
>
> HrMcp<-mcp.area(XY,id)
> #When I do run above command following error message pop up.
> Loading required package: gpclib
> Failed with error: ??gpclib? is not a valid installed package?
> Error in mcp.area(XY, id) : package gpclib required
>
> I would greatly appreciate if you get me any suggestion (I tried to follow
> adehabitatHR example but sorry to say not having any luck with my data).
>
> My data:
>
> Stage x y
> incubation 646446.9 5213729
> incubation 646395.1 5213765
> incubation 646395.1 5213765
> incubation 646395.1 5213765
> incubation 646382.5 5213783
> incubation 646395.1 5213765
> incubation 646395.5 5213746
> incubation 646665 5213605
> incubation 645684.8 5213821
> incubation 646396 5213727
> incubation 648337.4 5214609
> incubation 643467.4 5214935
> incubation 646395.1 5213765
> incubation 642319.7 5214203
> incubation 646244.7 5214224
> incubation 643306.7 5214227
>
> Kind regards
> Lutfor
>
>
>
> --
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> Sent from the R-sig-geo mailing list archive at Nabble.com.
>
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--
~$ whoami
Mathieu Basille, PhD
~$ locate --details
University of Florida \\
Fort Lauderdale Research and Education Center
(+1) 954-577-6314
http://ase-research.org/basille
~$ fortune
? Le tout est de tout dire, et je manque de mots
Et je manque de temps, et je manque d'audace. ?
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