Objects from the Class
Objects can be created by calls of the form
trip(obj = "SpatialPointsDataFrame", TORnames = "TimeOrderedRecords"
.
The object contains all the slots present within a SpatialPointsDataFrame
, particularly data
which contains columns of at least those specified by TOR.columns
Extends
Class "TimeOrderedRecords"
, directly.
Class "SpatialPointsDataFrame"
, directly.
Class "SpatialPoints"
, by class "SpatialPointsDataFrame"
.
Class "Spatial"
, by class "SpatialPointsDataFrame"
.Warning
There are some kludges to allow trip
to do things, such as replace POSIXt
column data using "$<-.trip"
and "[[<-.trip"
which should not be
necessary once sp implements the new data.frame
class of R >=2.4.0.