Hello yet again:

I have a little data set that I want to get a variogram for.  However, I keep getting an error.

> str(z1.df)
Formal class 'SpatialPointsDataFrame' [package "sp"] with 5 slots
  ..@ data       :'data.frame':    5 obs. of  1 variable:
  .. ..$ x: num [1:5] 1.4228 0.0275 -0.3738 0.2812 0.2328
  ..@ coords.nrs : int [1:2] 2 3
  ..@ coords     : num [1:5, 1:2] 146.9 133.8 -85.8 -99.9 -91.1 ...
  .. ..- attr(*, "dimnames")=List of 2
  .. .. ..$ : NULL
  .. .. ..$ : chr [1:2] "lon" "lat"
  ..@ bbox       : num [1:2, 1:2] -99.9 -31.3 146.9 38.3
  .. ..- attr(*, "dimnames")=List of 2
  .. .. ..$ : chr [1:2] "lon" "lat"
  .. .. ..$ : chr [1:2] "min" "max"
  ..@ proj4string:Formal class 'CRS' [package "sp"] with 1 slots
  .. .. ..@ projargs: chr NA
> variogram(z1.df)
Error in variogram.default(z1.df) :
  argument object and locations should be lists
>

Does this make any sense, please?

Thanks,
Erin


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