[R-sig-eco] Fwd: spatial analysis with dbMEM

[Andrew Halford]

Hi Listers,

I am trying to wrap my head around spatial eigenvector analyses and have
been trying to recreate the example code attached to the dbmem{adespatial}
documentation.

I am getting an error message when I try to run the following... The data
is drawn from the oribatid dataset.

data(oribatid)

mite <- oribatid$fau
mite.xy <- oribatid$xy
mite.dbmem1 <- dbmem(mite.xy, thresh=1.012, MEM.autocor = "non-null",
silent = FALSE)
s.label(mite.xy, nb = attr(mite.dbmem1, "listw"))

Error in s.label(mite.xy, nb = attr(mite.dbmem1, "listw")) :
  unused argument (nb = attr(mite.dbmem1, "listw"))
I dont know what the nb argument is here?

# Plot maps of the first 3 dbMEM eigenfunctions
s.value(mite.xy, mite.dbmem1[,1:3])

Error in s.value(mite.xy, mite.dbmem1[, 1:3]) :
  Non equal row numbers 70 3


I checked the mite.xy and mite.dbmem1 data and they both have 70 rows?

Andy



-- 
Andrew Halford Ph.D
Research Scientist (Kimberley Marine Parks)
Dept. Parks and Wildlife
Western Australia

Ph: +61 8 9219 9795 <+61%208%209219%209795>
Mobile: +61 (0) 468 419 473 <+61%20468%20419%20473>



-- 
Andrew Halford Ph.D
Research Scientist (Kimberley Marine Parks)
Dept. Parks and Wildlife
Western Australia

Ph: +61 8 9219 9795
Mobile: +61 (0) 468 419 473

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