spacetime (version 1.2-3)

ST-class: Class "ST"

Description

An abstract class from which useful spatio-temporal classes are derived

Usage

ST(sp, time, endTime)

Arguments

sp

an object deriving from class Spatial, such as a SpatialPoints or SpatialPolygons

time

an object of class xts, or a time vector (currently: Date, POSIXct, timeDate, yearmon and yearqtr; are supported; see xts); in the latter case, it should be in time order

endTime

vector of class POSIXct holding end points of time intervals

Objects from the Class

Objects of this class are not meant to be useful; only derived classes can be meaningful

Slots

sp:

Object deriving from class "Spatial"

time:

Object of class "xts"

Methods

[[

signature(obj = "ST"): retrieves the attribute element

$

signature(obj = "ST"): retrieves the attribute element

[[<-

signature(obj = "ST"): sets or replaces the attribute element

$<-

signature(obj = "ST"): sets or replaces the attribute element

% \item{plot}{\code{signature(x = "Spatial", y = "missing")}: plot method % for spatial objects; does nothing but setting up a plotting region choosing % a suitable aspect if not given(see below), colouring the plot background using either a bg= argument or par("bg"), and possibly drawing axes. } % \item{summary}{\code{signature(object = "Spatial")}: summarize object}

References

http://www.jstatsoft.org/v51/i07/

Examples

# NOT RUN {
time = as.Date('2008-01-01')+1:2
library(sp)
sp = SpatialPoints(cbind(c(0,1),c(0,1)))
ST(sp, time, delta(time))
# }