[R] AdehabitatHR Write Spatial Polygon Problem

[Shaney, Kyle J]

Hi All,

I am trying to export a shapefile of a minimum convex polygon, but I receive the following error message:


Error: is(x, "SpatialPolygonsDataFrame") is not TRUE


I was able to successfully get my minimum convex polygon and plot it in R using the following code:


PID208 <- read.csv(file="PID208.csv", header = TRUE, sep = ",")

head(PID208)


    Name      X       Y        X1       Y2 sex age        Receive.Time
1 PID208 391734 6744220 -148.9906 60.81855   2   3 2015.06.18 21:12:20
2 PID208 391738 6744219 -148.9905 60.81855   2   3 2015.06.18 22:50:30
3 PID208 391739 6744229 -148.9905 60.81864   2   3 2015.06.04 20:41:52
4 PID208 391748 6744229 -148.9904 60.81864   2   3 2015.06.04 20:44:27
5 PID208 391748 6744229 -148.9904 60.81864   2   3 2015.06.04 20:44:27
6 PID208 391743 6744229 -148.9904 60.81864   2   3 2015.06.04 22:07:07?

xy<- SpatialPoints(PID208 [2:3])
mcp(xy, percent=95)
mcp(xy, percent=95)$area #to find actual area covered
plot(mcp(xy,percent=100))


Anybody know what I might be missing to successfully export the file for use in GIS?

Thanks!

Kyle

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