[R-sig-Geo] mcp calculation

[Lutfor]

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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