Air quality data, rural background PM10 in Germany, daily averages 1998-2009
find default time interval end points when intervals are regular
Compute spatial or temporal empirical orthogonal function (EOF)
retrieve, or set, information whether time reflects instance (FALSE) or intervals (TRUE)
replace NA attribute values; disaggregation time series
convert a spatial nb object to a matching STF object
consistent spatio-temporal overlay for objects inheriting from ST
obtain ranges of space and time coordinates
create ST* objects from long or wide tables
subtract marginal (spatial and temporal) means from observations
read or write tgrass (time-enabled grass) files