tull {gstat}R Documentation

Südliche Tullnerfeld data set

Description

The Südliche Tullnerfeld is a part of the Danube river basin in central Lower Austria and due to its homogeneous aquifer well suited for a model-oriented geostatistical analysis. It contains 36 official water quality measurement stations, which are irregularly spread over the region.

Usage

data(tull)

Format

The data frames contain the following columns:

x
X location in meter
y
Y location in meter
S411
Station name
S429
Station name
S849
Station name
S854
Station name
S1502
Station name
S1584
Station name
S1591
Station name
S2046
Station name
S2047
Station name
S2048
Station name
S2049
Station name
S2051
Station name
S2052
Station name
S2053
Station name
S2054
Station name
S2055
Station name
S2057
Station name
S2058
Station name
S2059
Station name
S2060
Station name
S2061
Station name
S2062
Station name
S2063
Station name
S2064
Station name
S2065
Station name
S2066
Station name
S2067
Station name
S2070
Station name
S2071
Station name
S2072
Station name
S2128
Station name
S5319
Station name
S5320
Station name
S5321
Station name
S5322
Station name
S5323
Station name

Note

This data set was obtained on May 6, 2008 from http://www.ifas.jku.at/e5361/index_ger.html . The author of the book that uses it is found at: http://www.ifas.jku.at/e2571/e2604/index_ger.html

References

Werner G. Müller, Collecting Spatial Data, 3rd edition. Springer Verlag, Heidelberg, 2007

Examples

data(tull)

# TULLNREG = read.csv("TULLNREG.csv")

# I modified tulln36des.csv, such that the first line only contained: x,y
# resulting in row.names that reflect the station ID, as in
# tull36 = read.csv("tulln36des.csv")

# Chlorid92 was read & converted by:
#Chlorid92=read.csv("Chlorid92.csv")
#Chlorid92$Datum = as.POSIXct(strptime(Chlorid92$Datum, "

summary(tull36)
summary(TULLNREG)
summary(Chlorid92)

# stack & join data to x,y,Date,Chloride form:
cl.st = stack(Chlorid92[-1])
names(cl.st) = c("Chloride", "Station")
cl.st$Date = rep(Chlorid92$Datum, length(names(Chlorid92))-1)
cl.st$x = tull36[match(cl.st[,"Station"], row.names(tull36)), "x"]
cl.st$y = tull36[match(cl.st[,"Station"], row.names(tull36)), "y"]
# library(lattice)
# xyplot(Chloride~Date|Station, cl.st)
# xyplot(y~x|Date, cl.st, asp="iso", layout=c(16,11))
summary(cl.st)
plot(TULLNREG, pch=3, asp=1)
points(y~x, cl.st, add=TRUE, pch=16)

[Package gstat version 0.9-66 Index]