Hej hej,
is there a way to extend the SpatialPointsDataFrame data slot?This is the
structure of an object of it:> str(coord)
Formal class 'SpatialPointsDataFrame' [package "sp"] with 5 slots
..@ data :'data.frame': 214 obs. of 2 variables:
.. ..$ location.long: num [1:214] -79.8 -79.8 -79.8 -79.8 -79.8 ...
.. ..$ location.lat : num [1:214] 9.16 9.16 9.16 9.16 9.16 ...
..@ coords.nrs : num(0)
..@ coords : num [1:214, 1:2] -79.8 -79.8 -79.8 -79.8 -79.8 ...
.. ..- attr(*, "dimnames")=List of 2
.. .. ..$ : NULL
.. .. ..$ : chr [1:2] "location.long" "location.lat"
..@ bbox : num [1:2, 1:2] -79.84 9.16 -79.84 9.17
.. ..- attr(*, "dimnames")=List of 2
.. .. ..$ : chr [1:2] "location.long" "location.lat"
.. .. ..$ : chr [1:2] "min" "max"
..@ proj4string:Formal class 'CRS' [package "sp"] with 1 slots
.. .. ..@ projargs: chr NA
data is a data.frame including the information of long and lat location. I
would like to have there a third information: time (but as POSIXct). Is there
an elegant way to do this?
Best,
marco
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