Description Usage Arguments Value Author(s) See Also Examples
Removes the temporal mean at each location for the spatio-temporal
covariares. The means are added to the covar
field in the returned
object and can be used as geographic covariates.
1 | removeSTcovarMean(STdata)
|
STdata |
A |
Returns a modfied version of the input, where the spatio-temporal
covariates have been expanded to include covariates where the site by
site temporal average has been removed. The averages are seen as geographic
covariates and added to STdata$covars
.
Johan Lindstrom
Other STdata functions: c.STmodel
,
createDataMatrix
,
createSTdata
, createSTmodel
,
detrendSTdata
,
estimateBetaFields
,
updateTrend.STdata
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 | ##load the data
data(mesa.data.raw)
##and create STdata-object
mesa.data <- createSTdata(mesa.data.raw$obs, mesa.data.raw$X, n.basis=2,
SpatioTemporal=mesa.data.raw["lax.conc.1500"])
mesa.data.mean0 <- removeSTcovarMean(mesa.data)
##compare the data structures
##geographic covariates
summary(mesa.data$covars)
summary(mesa.data.mean0$covars)
##mean of the spatio-temporal covariate, note that the new
##contains both mean-zero and original
cbind(colMeans(mesa.data$SpatioTemporal),
colMeans(mesa.data.mean0$SpatioTemporal))
|
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