Running examples in ‘sp-Ex.R’ failed
The error most likely occurred in:

> base::assign(".ptime", proc.time(), pos = "CheckExEnv")
> ### Name: over-methods
> ### Title: consistent spatial overlay for points, grids and polygons
> ### Aliases: over %over% over-methods
> ###   over,SpatialPoints,SpatialPoints-method
> ###   over,SpatialPoints,SpatialPointsDataFrame-method
> ###   over,SpatialPoints,SpatialPolygons-method
> ###   over,SpatialPoints,SpatialPolygonsDataFrame-method
> ###   over,SpatialGridDataFrame,SpatialPolygonsDataFrame-method
> ###   over,SpatialPolygons,SpatialPoints-method
> ###   over,SpatialPolygons,SpatialPointsDataFrame-method
> ###   over,SpatialGridDataFrame,SpatialPoints-method
> ###   over,SpatialGrid,SpatialPoints-method
> ###   over,SpatialPixelsDataFrame,SpatialPoints-method
> ###   over,SpatialPixels,SpatialPoints-method
> ###   over,SpatialPoints,SpatialGrid-method
> ###   over,SpatialPoints,SpatialGridDataFrame-method
> ###   over,SpatialPoints,SpatialPixels-method
> ###   over,SpatialPoints,SpatialPixelsDataFrame-method
> ###   over,SpatialPolygons,SpatialGridDataFrame-method
> ###   over,SpatialGrid,SpatialPolygons-method
> ###   over,SpatialGrid,SpatialPolygonsDataFrame-method
> ###   over,SpatialPolygons,SpatialGrid-method
> ###   over,SpatialGrid,SpatialGrid-method
> ###   over,SpatialGrid,SpatialGridDataFrame-method
> ###   over,SpatialGrid,SpatialPixels-method
> ###   over,SpatialGrid,SpatialPixelsDataFrame-method
> ###   over,SpatialGrid,SpatialPointsDataFrame-method
> ###   over,Spatial,Spatial-method overDF_for_rgeos
> ### Keywords: methods
> 
> ### ** Examples
> 
> r1 = cbind(c(180114, 180553, 181127, 181477, 181294, 181007, 180409, 
+ 180162, 180114), c(332349, 332057, 332342, 333250, 333558, 333676, 
+ 332618, 332413, 332349))
> r2 = cbind(c(180042, 180545, 180553, 180314, 179955, 179142, 179437, 
+ 179524, 179979, 180042), c(332373, 332026, 331426, 330889, 330683, 
+ 331133, 331623, 332152, 332357, 332373))
> r3 = cbind(c(179110, 179907, 180433, 180712, 180752, 180329, 179875, 
+ 179668, 179572, 179269, 178879, 178600, 178544, 179046, 179110),
+ c(331086, 330620, 330494, 330265, 330075, 330233, 330336, 330004, 
+ 329783, 329665, 329720, 329933, 330478, 331062, 331086))
> r4 = cbind(c(180304, 180403,179632,179420,180304),
+ c(332791, 333204, 333635, 333058, 332791))
> 
> sr1=Polygons(list(Polygon(r1)),"r1")
> sr2=Polygons(list(Polygon(r2)),"r2")
> sr3=Polygons(list(Polygon(r3)),"r3")
> sr4=Polygons(list(Polygon(r4)),"r4")
> sr=SpatialPolygons(list(sr1,sr2,sr3,sr4))
> srdf=SpatialPolygonsDataFrame(sr, data.frame(cbind(1:4,5:2), 
+ 	row.names=c("r1","r2","r3","r4")))
> 
> data(meuse)
> coordinates(meuse) = ~x+y
> 
> plot(meuse)
> polygon(r1)
> polygon(r2)
> polygon(r3)
> polygon(r4)
> # retrieve mean heavy metal concentrations per polygon:
> over(sr, meuse[,1:4], fn = mean)
Error in res[[i]] <- candi[ret] : 
  more elements supplied than there are to replace
Calls: over ... over -> over -> pointsInSpatialPolygons -> pointsInPolys2
Execution halted