[R-sig-Geo] spsample creates more or less number of points

[subash]

Dear Group,

I am trying to create a points inside a spatial pixel data frame. I would
like create 100 points. Why are the number of created more than or sometimes
less than 100.


data(meuse.grid)
gridded(meuse.grid) = ~x+y
pnts = spsample(meuse.grid,type = "regular",n=100,offset = c(0.5,0.5))
spplot(meuse.grid, "dist",sp.layout = list("sp.points", pnts))

Similarly I am create a fixed 25 points in all polygon of sptial polygon
data frame . How would I achieve it?

Thanks in advance.

Subash



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