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|
R version 3.2.2 (2015-08-14) -- "Fire Safety"
Copyright (C) 2015 The R Foundation for Statistical Computing
Platform: x86_64-pc-linux-gnu (64-bit)
R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under certain conditions.
Type 'license()' or 'licence()' for distribution details.
R is a collaborative project with many contributors.
Type 'contributors()' for more information and
'citation()' on how to cite R or R packages in publications.
Type 'demo()' for some demos, 'help()' for on-line help, or
'help.start()' for an HTML browser interface to help.
Type 'q()' to quit R.
> options(digits=5)
> options(xts_check_TZ=FALSE)
> ###################################################
> ### chunk number 4:
> ###################################################
> library(sp)
> library(spacetime)
> set.seed(13579) # to make outcome a bit predictable!
> sp = cbind(x = c(0,0,1), y = c(0,1,1))
> row.names(sp) = paste("point", 1:nrow(sp), sep="")
> sp = SpatialPoints(sp)
> time = as.POSIXct("2010-08-05", tz="GMT")+3600*(10:13)
> m = c(10,20,30) # means for each of the 3 point locations
> mydata = rnorm(length(sp)*length(time),mean=rep(m, 4))
> IDs = paste("ID", 1:length(mydata), sep = "_")
> mydata = data.frame(values = signif(mydata,3), ID=IDs)
> stfdf = STFDF(sp, time, mydata)
>
>
> ###################################################
> ### chunk number 5:
> ###################################################
> format(as.data.frame(stfdf, row.names = IDs), tz="GMT")
x y sp.ID time endTime timeIndex values ID
ID_1 0 0 point1 2010-08-05 10:00:00 2010-08-05 11:00:00 1 8.77 ID_1
ID_2 0 1 point2 2010-08-05 10:00:00 2010-08-05 11:00:00 1 18.70 ID_2
ID_3 1 1 point3 2010-08-05 10:00:00 2010-08-05 11:00:00 1 29.70 ID_3
ID_4 0 0 point1 2010-08-05 11:00:00 2010-08-05 12:00:00 2 8.47 ID_4
ID_5 0 1 point2 2010-08-05 11:00:00 2010-08-05 12:00:00 2 21.10 ID_5
ID_6 1 1 point3 2010-08-05 11:00:00 2010-08-05 12:00:00 2 32.50 ID_6
ID_7 0 0 point1 2010-08-05 12:00:00 2010-08-05 13:00:00 3 10.80 ID_7
ID_8 0 1 point2 2010-08-05 12:00:00 2010-08-05 13:00:00 3 20.20 ID_8
ID_9 1 1 point3 2010-08-05 12:00:00 2010-08-05 13:00:00 3 29.00 ID_9
ID_10 0 0 point1 2010-08-05 13:00:00 2010-08-05 14:00:00 4 9.74 ID_10
ID_11 0 1 point2 2010-08-05 13:00:00 2010-08-05 14:00:00 4 20.70 ID_11
ID_12 1 1 point3 2010-08-05 13:00:00 2010-08-05 14:00:00 4 30.50 ID_12
> format(as(stfdf, "data.frame")[1:4,], tz="GMT")
x y sp.ID time endTime timeIndex values ID
1 0 0 point1 2010-08-05 10:00:00 2010-08-05 11:00:00 1 8.77 ID_1
2 0 1 point2 2010-08-05 10:00:00 2010-08-05 11:00:00 1 18.70 ID_2
3 1 1 point3 2010-08-05 10:00:00 2010-08-05 11:00:00 1 29.70 ID_3
4 0 0 point1 2010-08-05 11:00:00 2010-08-05 12:00:00 2 8.47 ID_4
>
> ###################################################
> ### chunk number 6:
> ###################################################
> unstack(stfdf)
point1 point2 point3
2010-08-05 10:00:00 8.77 18.7 29.7
2010-08-05 11:00:00 8.47 21.1 32.5
2010-08-05 12:00:00 10.80 20.2 29.0
2010-08-05 13:00:00 9.74 20.7 30.5
> t(unstack(stfdf))
2010-08-05 10:00:00 2010-08-05 11:00:00 2010-08-05 12:00:00
point1 8.77 8.47 10.8
point2 18.70 21.10 20.2
point3 29.70 32.50 29.0
2010-08-05 13:00:00
point1 9.74
point2 20.70
point3 30.50
> unstack(stfdf, which = 2)
point1 point2 point3
2010-08-05 10:00:00 ID_1 ID_2 ID_3
2010-08-05 11:00:00 ID_4 ID_5 ID_6
2010-08-05 12:00:00 ID_7 ID_8 ID_9
2010-08-05 13:00:00 ID_10 ID_11 ID_12
>
> ###################################################
> ### chunk number 7:
> ###################################################
> as(stfdf[,,1], "xts")
point1 point2 point3
2010-08-05 10:00:00 8.77 18.7 29.7
2010-08-05 11:00:00 8.47 21.1 32.5
2010-08-05 12:00:00 10.80 20.2 29.0
2010-08-05 13:00:00 9.74 20.7 30.5
> as(stfdf[,,2], "xts")
point1 point2 point3
2010-08-05 10:00:00 "ID_1" "ID_2" "ID_3"
2010-08-05 11:00:00 "ID_4" "ID_5" "ID_6"
2010-08-05 12:00:00 "ID_7" "ID_8" "ID_9"
2010-08-05 13:00:00 "ID_10" "ID_11" "ID_12"
>
> ###################################################
> ### chunk number 8:
> ###################################################
> stfdf[[1]]
[1] 8.77 18.70 29.70 8.47 21.10 32.50 10.80 20.20 29.00 9.74 20.70 30.50
> stfdf[["values"]]
[1] 8.77 18.70 29.70 8.47 21.10 32.50 10.80 20.20 29.00 9.74 20.70 30.50
> stfdf[["newVal"]] <- rnorm(12)
> stfdf$ID
[1] ID_1 ID_2 ID_3 ID_4 ID_5 ID_6 ID_7 ID_8 ID_9 ID_10 ID_11 ID_12
Levels: ID_1 ID_10 ID_11 ID_12 ID_2 ID_3 ID_4 ID_5 ID_6 ID_7 ID_8 ID_9
> stfdf$ID = paste("OldIDs", 1:12, sep="")
> stfdf$NewID = paste("NewIDs", 12:1, sep="")
> stfdf
An object of class "STFDF"
Slot "data":
values ID newVal NewID
1 8.77 OldIDs1 -0.766670 NewIDs12
2 18.70 OldIDs2 -0.437290 NewIDs11
3 29.70 OldIDs3 -0.471551 NewIDs10
4 8.47 OldIDs4 -0.561384 NewIDs9
5 21.10 OldIDs5 -1.215165 NewIDs8
6 32.50 OldIDs6 0.246818 NewIDs7
7 10.80 OldIDs7 -0.861698 NewIDs6
8 20.20 OldIDs8 0.659911 NewIDs5
9 29.00 OldIDs9 -0.036842 NewIDs4
10 9.74 OldIDs10 -0.952524 NewIDs3
11 20.70 OldIDs11 -1.699710 NewIDs2
12 30.50 OldIDs12 0.899851 NewIDs1
Slot "sp":
SpatialPoints:
x y
point1 0 0
point2 0 1
point3 1 1
Coordinate Reference System (CRS) arguments: NA
Slot "time":
timeIndex
2010-08-05 10:00:00 1
2010-08-05 11:00:00 2
2010-08-05 12:00:00 3
2010-08-05 13:00:00 4
Slot "endTime":
[1] "2010-08-05 11:00:00 GMT" "2010-08-05 12:00:00 GMT"
[3] "2010-08-05 13:00:00 GMT" "2010-08-05 14:00:00 GMT"
>
>
> ###################################################
> ### chunk number 9:
> ###################################################
> stfdf[,1] # SpatialPointsDataFrame:
coordinates values ID newVal NewID
1 (0, 0) 8.77 OldIDs1 -0.76667 NewIDs12
2 (0, 1) 18.70 OldIDs2 -0.43729 NewIDs11
3 (1, 1) 29.70 OldIDs3 -0.47155 NewIDs10
> stfdf[,,1]
An object of class "STFDF"
Slot "data":
values
1 8.77
2 18.70
3 29.70
4 8.47
5 21.10
6 32.50
7 10.80
8 20.20
9 29.00
10 9.74
11 20.70
12 30.50
Slot "sp":
SpatialPoints:
x y
point1 0 0
point2 0 1
point3 1 1
Coordinate Reference System (CRS) arguments: NA
Slot "time":
timeIndex
2010-08-05 10:00:00 1
2010-08-05 11:00:00 2
2010-08-05 12:00:00 3
2010-08-05 13:00:00 4
Slot "endTime":
[1] "2010-08-05 11:00:00 GMT" "2010-08-05 12:00:00 GMT"
[3] "2010-08-05 13:00:00 GMT" "2010-08-05 14:00:00 GMT"
> stfdf[1,,1] # xts
values timeIndex
2010-08-05 10:00:00 8.77 1
2010-08-05 11:00:00 8.47 2
2010-08-05 12:00:00 10.80 3
2010-08-05 13:00:00 9.74 4
> stfdf[,,"ID"]
An object of class "STFDF"
Slot "data":
ID
1 OldIDs1
2 OldIDs2
3 OldIDs3
4 OldIDs4
5 OldIDs5
6 OldIDs6
7 OldIDs7
8 OldIDs8
9 OldIDs9
10 OldIDs10
11 OldIDs11
12 OldIDs12
Slot "sp":
SpatialPoints:
x y
point1 0 0
point2 0 1
point3 1 1
Coordinate Reference System (CRS) arguments: NA
Slot "time":
timeIndex
2010-08-05 10:00:00 1
2010-08-05 11:00:00 2
2010-08-05 12:00:00 3
2010-08-05 13:00:00 4
Slot "endTime":
[1] "2010-08-05 11:00:00 GMT" "2010-08-05 12:00:00 GMT"
[3] "2010-08-05 13:00:00 GMT" "2010-08-05 14:00:00 GMT"
> stfdf[1,,"values", drop=FALSE] # stays STFDF:
An object of class "STFDF"
Slot "data":
values
1 8.77
2 8.47
3 10.80
4 9.74
Slot "sp":
SpatialPoints:
x y
point1 0 0
Coordinate Reference System (CRS) arguments: NA
Slot "time":
timeIndex
2010-08-05 10:00:00 1
2010-08-05 11:00:00 2
2010-08-05 12:00:00 3
2010-08-05 13:00:00 4
Slot "endTime":
[1] "2010-08-05 11:00:00 GMT" "2010-08-05 12:00:00 GMT"
[3] "2010-08-05 13:00:00 GMT" "2010-08-05 14:00:00 GMT"
> stfdf[,1, drop=FALSE] #stays STFDF
An object of class "STFDF"
Slot "data":
values ID newVal NewID
1 8.77 OldIDs1 -0.76667 NewIDs12
2 18.70 OldIDs2 -0.43729 NewIDs11
3 29.70 OldIDs3 -0.47155 NewIDs10
Slot "sp":
SpatialPoints:
x y
point1 0 0
point2 0 1
point3 1 1
Coordinate Reference System (CRS) arguments: NA
Slot "time":
timeIndex
2010-08-05 10:00:00 1
Slot "endTime":
[1] "2010-08-05 11:00:00 GMT"
>
> ###################################################
> ### chunk number 10:
> ###################################################
> showClass("STSDF")
Class "STSDF" [package "spacetime"]
Slots:
Name: data index sp time endTime
Class: data.frame matrix Spatial xts POSIXct
Extends:
Class "STS", directly
Class "ST", by class "STS", distance 2
>
> ###################################################
> ### chunk number 11:
> ###################################################
> showClass("STIDF")
Class "STIDF" [package "spacetime"]
Slots:
Name: data sp time endTime
Class: data.frame Spatial xts POSIXct
Extends:
Class "STI", directly
Class "ST", by class "STI", distance 2
> sp = expand.grid(x = 1:3, y = 1:3)
> row.names(sp) = paste("point", 1:nrow(sp), sep="")
> sp = SpatialPoints(sp)
> time = as.POSIXct("2010-08-05", tz="GMT")+3600*(11:19)
> m = 1:9 * 10 # means for each of the 9 point locations
> mydata = rnorm(length(sp), mean=m)
> IDs = paste("ID",1:length(mydata))
> mydata = data.frame(values = signif(mydata,3),ID=IDs)
> stidf = STIDF(sp, time, mydata)
> stidf
An object of class "STIDF"
Slot "data":
values ID
1 10.7 ID 1
2 19.8 ID 2
3 29.2 ID 3
4 41.8 ID 4
5 50.2 ID 5
6 59.9 ID 6
7 70.9 ID 7
8 80.0 ID 8
9 90.2 ID 9
Slot "sp":
SpatialPoints:
x y
point1 1 1
point2 2 1
point3 3 1
point4 1 2
point5 2 2
point6 3 2
point7 1 3
point8 2 3
point9 3 3
Coordinate Reference System (CRS) arguments: NA
Slot "time":
timeIndex
2010-08-05 11:00:00 1
2010-08-05 12:00:00 2
2010-08-05 13:00:00 3
2010-08-05 14:00:00 4
2010-08-05 15:00:00 5
2010-08-05 16:00:00 6
2010-08-05 17:00:00 7
2010-08-05 18:00:00 8
2010-08-05 19:00:00 9
Slot "endTime":
[1] "2010-08-05 11:00:00 GMT" "2010-08-05 12:00:00 GMT"
[3] "2010-08-05 13:00:00 GMT" "2010-08-05 14:00:00 GMT"
[5] "2010-08-05 15:00:00 GMT" "2010-08-05 16:00:00 GMT"
[7] "2010-08-05 17:00:00 GMT" "2010-08-05 18:00:00 GMT"
[9] "2010-08-05 19:00:00 GMT"
>
>
> ###################################################
> ### chunk number 12:
> ###################################################
> stidf[1:2,]
An object of class "STIDF"
Slot "data":
values ID
1 10.7 ID 1
2 19.8 ID 2
Slot "sp":
SpatialPoints:
x y
point1 1 1
point2 2 1
Coordinate Reference System (CRS) arguments: NA
Slot "time":
timeIndex
2010-08-05 11:00:00 1
2010-08-05 12:00:00 2
Slot "endTime":
[1] "2010-08-05 11:00:00 GMT" "2010-08-05 12:00:00 GMT"
>
>
> ###################################################
> ### chunk number 13:
> ###################################################
> stfdf[,time[3]]
coordinates values ID newVal NewID
1 (0, 0) 9.74 OldIDs10 -0.95252 NewIDs3
2 (0, 1) 20.70 OldIDs11 -1.69971 NewIDs2
3 (1, 1) 30.50 OldIDs12 0.89985 NewIDs1
>
>
> ###################################################
> ### chunk number 14:
> ###################################################
> class(stfdf[,time[3],drop=FALSE])
[1] "STFDF"
attr(,"package")
[1] "spacetime"
>
> ###################################################
> ### chunk number 15:
> ###################################################
> stfdf[1, , "values"]
values timeIndex
2010-08-05 10:00:00 8.77 1
2010-08-05 11:00:00 8.47 2
2010-08-05 12:00:00 10.80 3
2010-08-05 13:00:00 9.74 4
>
> ###################################################
> ### chunk number 16:
> ###################################################
> class(stfdf[1,drop=FALSE])
[1] "STFDF"
attr(,"package")
[1] "spacetime"
>
>
> ###################################################
> ### chunk number 17:
> ###################################################
> class(stfdf)
[1] "STFDF"
attr(,"package")
[1] "spacetime"
> class(as(stfdf, "STSDF"))
[1] "STSDF"
attr(,"package")
[1] "spacetime"
> class(as(as(stfdf, "STSDF"), "STIDF"))
[1] "STIDF"
attr(,"package")
[1] "spacetime"
> class(as(stfdf, "STIDF"))
[1] "STIDF"
attr(,"package")
[1] "spacetime"
>
>
> ###################################################
> ### chunk number 18:
> ###################################################
> x = as(stfdf, "STIDF")
> class(as(x, "STSDF"))
[1] "STSDF"
attr(,"package")
[1] "spacetime"
> class(as(as(x, "STSDF"), "STFDF"))
[1] "STFDF"
attr(,"package")
[1] "spacetime"
> class(as(x, "STFDF"))
[1] "STFDF"
attr(,"package")
[1] "spacetime"
> xx = as(x, "STFDF")
> identical(stfdf, xx)
[1] TRUE
>
> stsdf = as(stfdf, "STSDF")
> stsdf[[1]]
[1] 8.77 18.70 29.70 8.47 21.10 32.50 10.80 20.20 29.00 9.74 20.70 30.50
> stsdf[["values"]]
[1] 8.77 18.70 29.70 8.47 21.10 32.50 10.80 20.20 29.00 9.74 20.70 30.50
> stsdf[["newVal"]] <- rnorm(12)
> stsdf$ID
[1] "OldIDs1" "OldIDs2" "OldIDs3" "OldIDs4" "OldIDs5" "OldIDs6"
[7] "OldIDs7" "OldIDs8" "OldIDs9" "OldIDs10" "OldIDs11" "OldIDs12"
> stsdf$ID = paste("OldIDs", 1:12, sep="")
> stsdf$NewID = paste("NewIDs", 12:1, sep="")
> stsdf
An object of class "STSDF"
Slot "data":
values ID newVal NewID
1 8.77 OldIDs1 -1.24345 NewIDs12
2 18.70 OldIDs2 -1.47698 NewIDs11
3 29.70 OldIDs3 -0.84284 NewIDs10
4 8.47 OldIDs4 1.54992 NewIDs9
5 21.10 OldIDs5 1.04955 NewIDs8
6 32.50 OldIDs6 1.35744 NewIDs7
7 10.80 OldIDs7 1.33925 NewIDs6
8 20.20 OldIDs8 0.77757 NewIDs5
9 29.00 OldIDs9 0.39454 NewIDs4
10 9.74 OldIDs10 0.15138 NewIDs3
11 20.70 OldIDs11 -0.38780 NewIDs2
12 30.50 OldIDs12 0.46815 NewIDs1
Slot "index":
[,1] [,2]
[1,] 1 1
[2,] 2 1
[3,] 3 1
[4,] 1 2
[5,] 2 2
[6,] 3 2
[7,] 1 3
[8,] 2 3
[9,] 3 3
[10,] 1 4
[11,] 2 4
[12,] 3 4
Slot "sp":
SpatialPoints:
x y
point1 0 0
point2 0 1
point3 1 1
Coordinate Reference System (CRS) arguments: NA
Slot "time":
timeIndex
2010-08-05 10:00:00 1
2010-08-05 11:00:00 2
2010-08-05 12:00:00 3
2010-08-05 13:00:00 4
Slot "endTime":
[1] "2010-08-05 11:00:00 GMT" "2010-08-05 12:00:00 GMT"
[3] "2010-08-05 13:00:00 GMT" "2010-08-05 14:00:00 GMT"
> stsdf[,1] # SpatialPointsDataFrame:
coordinates values ID newVal NewID
1 (0, 0) 8.77 OldIDs1 -1.24345 NewIDs12
2 (0, 1) 18.70 OldIDs2 -1.47698 NewIDs11
3 (1, 1) 29.70 OldIDs3 -0.84284 NewIDs10
> stsdf[,,1]
An object of class "STSDF"
Slot "data":
values
1 8.77
2 18.70
3 29.70
4 8.47
5 21.10
6 32.50
7 10.80
8 20.20
9 29.00
10 9.74
11 20.70
12 30.50
Slot "index":
[,1] [,2]
[1,] 1 1
[2,] 2 1
[3,] 3 1
[4,] 1 2
[5,] 2 2
[6,] 3 2
[7,] 1 3
[8,] 2 3
[9,] 3 3
[10,] 1 4
[11,] 2 4
[12,] 3 4
Slot "sp":
SpatialPoints:
x y
point1 0 0
point2 0 1
point3 1 1
Coordinate Reference System (CRS) arguments: NA
Slot "time":
timeIndex
2010-08-05 10:00:00 1
2010-08-05 11:00:00 2
2010-08-05 12:00:00 3
2010-08-05 13:00:00 4
Slot "endTime":
[1] "2010-08-05 11:00:00 GMT" "2010-08-05 12:00:00 GMT"
[3] "2010-08-05 13:00:00 GMT" "2010-08-05 14:00:00 GMT"
> stsdf[1,,1] # xts
values timeIndex
2010-08-05 10:00:00 8.77 1
2010-08-05 11:00:00 8.47 2
2010-08-05 12:00:00 10.80 3
2010-08-05 13:00:00 9.74 4
> stsdf[,,"ID"]
An object of class "STSDF"
Slot "data":
ID
1 OldIDs1
2 OldIDs2
3 OldIDs3
4 OldIDs4
5 OldIDs5
6 OldIDs6
7 OldIDs7
8 OldIDs8
9 OldIDs9
10 OldIDs10
11 OldIDs11
12 OldIDs12
Slot "index":
[,1] [,2]
[1,] 1 1
[2,] 2 1
[3,] 3 1
[4,] 1 2
[5,] 2 2
[6,] 3 2
[7,] 1 3
[8,] 2 3
[9,] 3 3
[10,] 1 4
[11,] 2 4
[12,] 3 4
Slot "sp":
SpatialPoints:
x y
point1 0 0
point2 0 1
point3 1 1
Coordinate Reference System (CRS) arguments: NA
Slot "time":
timeIndex
2010-08-05 10:00:00 1
2010-08-05 11:00:00 2
2010-08-05 12:00:00 3
2010-08-05 13:00:00 4
Slot "endTime":
[1] "2010-08-05 11:00:00 GMT" "2010-08-05 12:00:00 GMT"
[3] "2010-08-05 13:00:00 GMT" "2010-08-05 14:00:00 GMT"
> stsdf[1,,"values", drop=FALSE] # stays STIDF:
An object of class "STSDF"
Slot "data":
values
1 8.77
4 8.47
7 10.80
10 9.74
Slot "index":
[,1] [,2]
[1,] 1 1
[2,] 1 2
[3,] 1 3
[4,] 1 4
Slot "sp":
SpatialPoints:
x y
point1 0 0
Coordinate Reference System (CRS) arguments: NA
Slot "time":
timeIndex
2010-08-05 10:00:00 1
2010-08-05 11:00:00 2
2010-08-05 12:00:00 3
2010-08-05 13:00:00 4
Slot "endTime":
[1] "2010-08-05 11:00:00 GMT" "2010-08-05 12:00:00 GMT"
[3] "2010-08-05 13:00:00 GMT" "2010-08-05 14:00:00 GMT"
> stsdf[,1, drop=FALSE] #stays STIDF
An object of class "STSDF"
Slot "data":
values ID newVal NewID
1 8.77 OldIDs1 -1.24345 NewIDs12
2 18.70 OldIDs2 -1.47698 NewIDs11
3 29.70 OldIDs3 -0.84284 NewIDs10
Slot "index":
[,1] [,2]
[1,] 1 1
[2,] 2 1
[3,] 3 1
Slot "sp":
SpatialPoints:
x y
point1 0 0
point2 0 1
point3 1 1
Coordinate Reference System (CRS) arguments: NA
Slot "time":
timeIndex
2010-08-05 10:00:00 1
Slot "endTime":
[1] "2010-08-05 11:00:00 GMT"
> format(as.data.frame(stsdf), tz="GMT")
x y sp.ID time endTime timeIndex values ID
1 0 0 point1 2010-08-05 10:00:00 2010-08-05 11:00:00 1 8.77 OldIDs1
2 0 1 point2 2010-08-05 10:00:00 2010-08-05 11:00:00 1 18.70 OldIDs2
3 1 1 point3 2010-08-05 10:00:00 2010-08-05 11:00:00 1 29.70 OldIDs3
4 0 0 point1 2010-08-05 11:00:00 2010-08-05 12:00:00 2 8.47 OldIDs4
5 0 1 point2 2010-08-05 11:00:00 2010-08-05 12:00:00 2 21.10 OldIDs5
6 1 1 point3 2010-08-05 11:00:00 2010-08-05 12:00:00 2 32.50 OldIDs6
7 0 0 point1 2010-08-05 12:00:00 2010-08-05 13:00:00 3 10.80 OldIDs7
8 0 1 point2 2010-08-05 12:00:00 2010-08-05 13:00:00 3 20.20 OldIDs8
9 1 1 point3 2010-08-05 12:00:00 2010-08-05 13:00:00 3 29.00 OldIDs9
10 0 0 point1 2010-08-05 13:00:00 2010-08-05 14:00:00 4 9.74 OldIDs10
11 0 1 point2 2010-08-05 13:00:00 2010-08-05 14:00:00 4 20.70 OldIDs11
12 1 1 point3 2010-08-05 13:00:00 2010-08-05 14:00:00 4 30.50 OldIDs12
newVal NewID
1 -1.24345 NewIDs12
2 -1.47698 NewIDs11
3 -0.84284 NewIDs10
4 1.54992 NewIDs9
5 1.04955 NewIDs8
6 1.35744 NewIDs7
7 1.33925 NewIDs6
8 0.77757 NewIDs5
9 0.39454 NewIDs4
10 0.15138 NewIDs3
11 -0.38780 NewIDs2
12 0.46815 NewIDs1
> format(as(stsdf, "data.frame"), tz="GMT")
x y sp.ID time endTime timeIndex values ID
1 0 0 point1 2010-08-05 10:00:00 2010-08-05 11:00:00 1 8.77 OldIDs1
2 0 1 point2 2010-08-05 10:00:00 2010-08-05 11:00:00 1 18.70 OldIDs2
3 1 1 point3 2010-08-05 10:00:00 2010-08-05 11:00:00 1 29.70 OldIDs3
4 0 0 point1 2010-08-05 11:00:00 2010-08-05 12:00:00 2 8.47 OldIDs4
5 0 1 point2 2010-08-05 11:00:00 2010-08-05 12:00:00 2 21.10 OldIDs5
6 1 1 point3 2010-08-05 11:00:00 2010-08-05 12:00:00 2 32.50 OldIDs6
7 0 0 point1 2010-08-05 12:00:00 2010-08-05 13:00:00 3 10.80 OldIDs7
8 0 1 point2 2010-08-05 12:00:00 2010-08-05 13:00:00 3 20.20 OldIDs8
9 1 1 point3 2010-08-05 12:00:00 2010-08-05 13:00:00 3 29.00 OldIDs9
10 0 0 point1 2010-08-05 13:00:00 2010-08-05 14:00:00 4 9.74 OldIDs10
11 0 1 point2 2010-08-05 13:00:00 2010-08-05 14:00:00 4 20.70 OldIDs11
12 1 1 point3 2010-08-05 13:00:00 2010-08-05 14:00:00 4 30.50 OldIDs12
newVal NewID
1 -1.24345 NewIDs12
2 -1.47698 NewIDs11
3 -0.84284 NewIDs10
4 1.54992 NewIDs9
5 1.04955 NewIDs8
6 1.35744 NewIDs7
7 1.33925 NewIDs6
8 0.77757 NewIDs5
9 0.39454 NewIDs4
10 0.15138 NewIDs3
11 -0.38780 NewIDs2
12 0.46815 NewIDs1
>
> stidf = as(stfdf, "STIDF")
> stidf[[1]]
[1] 8.77 18.70 29.70 8.47 21.10 32.50 10.80 20.20 29.00 9.74 20.70 30.50
> stidf[["values"]]
[1] 8.77 18.70 29.70 8.47 21.10 32.50 10.80 20.20 29.00 9.74 20.70 30.50
> stidf[["newVal"]] <- rnorm(12)
> stidf$ID
[1] "OldIDs1" "OldIDs2" "OldIDs3" "OldIDs4" "OldIDs5" "OldIDs6"
[7] "OldIDs7" "OldIDs8" "OldIDs9" "OldIDs10" "OldIDs11" "OldIDs12"
> stidf$ID = paste("OldIDs", 1:12, sep="")
> stidf$NewID = paste("NewIDs", 12:1, sep="")
> stidf
An object of class "STIDF"
Slot "data":
values ID newVal NewID
1 8.77 OldIDs1 1.67415 NewIDs12
2 18.70 OldIDs2 -1.47819 NewIDs11
3 29.70 OldIDs3 -1.63290 NewIDs10
4 8.47 OldIDs4 -0.97491 NewIDs9
5 21.10 OldIDs5 -0.76499 NewIDs8
6 32.50 OldIDs6 0.10300 NewIDs7
7 10.80 OldIDs7 -1.06830 NewIDs6
8 20.20 OldIDs8 0.47947 NewIDs5
9 29.00 OldIDs9 1.17482 NewIDs4
10 9.74 OldIDs10 1.03354 NewIDs3
11 20.70 OldIDs11 0.82826 NewIDs2
12 30.50 OldIDs12 -0.75862 NewIDs1
Slot "sp":
SpatialPoints:
x y
point1 0 0
point2 0 1
point3 1 1
point1.1 0 0
point2.1 0 1
point3.1 1 1
point1.2 0 0
point2.2 0 1
point3.2 1 1
point1.3 0 0
point2.3 0 1
point3.3 1 1
Coordinate Reference System (CRS) arguments: NA
Slot "time":
timeIndex
2010-08-05 10:00:00 1
2010-08-05 10:00:00 1
2010-08-05 10:00:00 1
2010-08-05 11:00:00 2
2010-08-05 11:00:00 2
2010-08-05 11:00:00 2
2010-08-05 12:00:00 3
2010-08-05 12:00:00 3
2010-08-05 12:00:00 3
2010-08-05 13:00:00 4
2010-08-05 13:00:00 4
2010-08-05 13:00:00 4
Slot "endTime":
[1] "2010-08-05 11:00:00 GMT" "2010-08-05 11:00:00 GMT"
[3] "2010-08-05 11:00:00 GMT" "2010-08-05 12:00:00 GMT"
[5] "2010-08-05 12:00:00 GMT" "2010-08-05 12:00:00 GMT"
[7] "2010-08-05 13:00:00 GMT" "2010-08-05 13:00:00 GMT"
[9] "2010-08-05 13:00:00 GMT" "2010-08-05 14:00:00 GMT"
[11] "2010-08-05 14:00:00 GMT" "2010-08-05 14:00:00 GMT"
> stidf[,1] # SpatialPointsDataFrame:
An object of class "STIDF"
Slot "data":
values ID newVal NewID
1 8.77 OldIDs1 1.6741 NewIDs12
Slot "sp":
SpatialPoints:
x y
point1 0 0
Coordinate Reference System (CRS) arguments: NA
Slot "time":
timeIndex
2010-08-05 10:00:00 1
Slot "endTime":
[1] "2010-08-05 11:00:00 GMT"
> stidf[,,1]
An object of class "STIDF"
Slot "data":
values
1 8.77
2 18.70
3 29.70
4 8.47
5 21.10
6 32.50
7 10.80
8 20.20
9 29.00
10 9.74
11 20.70
12 30.50
Slot "sp":
SpatialPoints:
x y
point1 0 0
point2 0 1
point3 1 1
point1.1 0 0
point2.1 0 1
point3.1 1 1
point1.2 0 0
point2.2 0 1
point3.2 1 1
point1.3 0 0
point2.3 0 1
point3.3 1 1
Coordinate Reference System (CRS) arguments: NA
Slot "time":
timeIndex
2010-08-05 10:00:00 1
2010-08-05 10:00:00 1
2010-08-05 10:00:00 1
2010-08-05 11:00:00 2
2010-08-05 11:00:00 2
2010-08-05 11:00:00 2
2010-08-05 12:00:00 3
2010-08-05 12:00:00 3
2010-08-05 12:00:00 3
2010-08-05 13:00:00 4
2010-08-05 13:00:00 4
2010-08-05 13:00:00 4
Slot "endTime":
[1] "2010-08-05 11:00:00 GMT" "2010-08-05 11:00:00 GMT"
[3] "2010-08-05 11:00:00 GMT" "2010-08-05 12:00:00 GMT"
[5] "2010-08-05 12:00:00 GMT" "2010-08-05 12:00:00 GMT"
[7] "2010-08-05 13:00:00 GMT" "2010-08-05 13:00:00 GMT"
[9] "2010-08-05 13:00:00 GMT" "2010-08-05 14:00:00 GMT"
[11] "2010-08-05 14:00:00 GMT" "2010-08-05 14:00:00 GMT"
> stidf[1,,1] # xts
An object of class "STIDF"
Slot "data":
values
1 8.77
Slot "sp":
SpatialPoints:
x y
point1 0 0
Coordinate Reference System (CRS) arguments: NA
Slot "time":
timeIndex
2010-08-05 10:00:00 1
Slot "endTime":
[1] "2010-08-05 11:00:00 GMT"
> stidf[,,"ID"]
An object of class "STIDF"
Slot "data":
ID
1 OldIDs1
2 OldIDs2
3 OldIDs3
4 OldIDs4
5 OldIDs5
6 OldIDs6
7 OldIDs7
8 OldIDs8
9 OldIDs9
10 OldIDs10
11 OldIDs11
12 OldIDs12
Slot "sp":
SpatialPoints:
x y
point1 0 0
point2 0 1
point3 1 1
point1.1 0 0
point2.1 0 1
point3.1 1 1
point1.2 0 0
point2.2 0 1
point3.2 1 1
point1.3 0 0
point2.3 0 1
point3.3 1 1
Coordinate Reference System (CRS) arguments: NA
Slot "time":
timeIndex
2010-08-05 10:00:00 1
2010-08-05 10:00:00 1
2010-08-05 10:00:00 1
2010-08-05 11:00:00 2
2010-08-05 11:00:00 2
2010-08-05 11:00:00 2
2010-08-05 12:00:00 3
2010-08-05 12:00:00 3
2010-08-05 12:00:00 3
2010-08-05 13:00:00 4
2010-08-05 13:00:00 4
2010-08-05 13:00:00 4
Slot "endTime":
[1] "2010-08-05 11:00:00 GMT" "2010-08-05 11:00:00 GMT"
[3] "2010-08-05 11:00:00 GMT" "2010-08-05 12:00:00 GMT"
[5] "2010-08-05 12:00:00 GMT" "2010-08-05 12:00:00 GMT"
[7] "2010-08-05 13:00:00 GMT" "2010-08-05 13:00:00 GMT"
[9] "2010-08-05 13:00:00 GMT" "2010-08-05 14:00:00 GMT"
[11] "2010-08-05 14:00:00 GMT" "2010-08-05 14:00:00 GMT"
> stidf[1,,"values", drop=FALSE] # stays STIDF:
An object of class "STIDF"
Slot "data":
values
1 8.77
Slot "sp":
SpatialPoints:
x y
point1 0 0
Coordinate Reference System (CRS) arguments: NA
Slot "time":
timeIndex
2010-08-05 10:00:00 1
Slot "endTime":
[1] "2010-08-05 11:00:00 GMT"
> stidf[,1, drop=FALSE] #stays STIDF
An object of class "STIDF"
Slot "data":
values ID newVal NewID
1 8.77 OldIDs1 1.6741 NewIDs12
Slot "sp":
SpatialPoints:
x y
point1 0 0
Coordinate Reference System (CRS) arguments: NA
Slot "time":
timeIndex
2010-08-05 10:00:00 1
Slot "endTime":
[1] "2010-08-05 11:00:00 GMT"
> format(as.data.frame(stidf), tz="GMT")
x y sp.ID time endTime timeIndex values
1 0 0 point1 2010-08-05 10:00:00 2010-08-05 11:00:00 1 8.77
2 0 1 point2 2010-08-05 10:00:00 2010-08-05 11:00:00 1 18.70
3 1 1 point3 2010-08-05 10:00:00 2010-08-05 11:00:00 1 29.70
4 0 0 point1.1 2010-08-05 11:00:00 2010-08-05 12:00:00 2 8.47
5 0 1 point2.1 2010-08-05 11:00:00 2010-08-05 12:00:00 2 21.10
6 1 1 point3.1 2010-08-05 11:00:00 2010-08-05 12:00:00 2 32.50
7 0 0 point1.2 2010-08-05 12:00:00 2010-08-05 13:00:00 3 10.80
8 0 1 point2.2 2010-08-05 12:00:00 2010-08-05 13:00:00 3 20.20
9 1 1 point3.2 2010-08-05 12:00:00 2010-08-05 13:00:00 3 29.00
10 0 0 point1.3 2010-08-05 13:00:00 2010-08-05 14:00:00 4 9.74
11 0 1 point2.3 2010-08-05 13:00:00 2010-08-05 14:00:00 4 20.70
12 1 1 point3.3 2010-08-05 13:00:00 2010-08-05 14:00:00 4 30.50
ID newVal NewID
1 OldIDs1 1.67415 NewIDs12
2 OldIDs2 -1.47819 NewIDs11
3 OldIDs3 -1.63290 NewIDs10
4 OldIDs4 -0.97491 NewIDs9
5 OldIDs5 -0.76499 NewIDs8
6 OldIDs6 0.10300 NewIDs7
7 OldIDs7 -1.06830 NewIDs6
8 OldIDs8 0.47947 NewIDs5
9 OldIDs9 1.17482 NewIDs4
10 OldIDs10 1.03354 NewIDs3
11 OldIDs11 0.82826 NewIDs2
12 OldIDs12 -0.75862 NewIDs1
> format(as(stidf, "data.frame"), tz="GMT")
x y sp.ID time endTime timeIndex values
1 0 0 point1 2010-08-05 10:00:00 2010-08-05 11:00:00 1 8.77
2 0 1 point2 2010-08-05 10:00:00 2010-08-05 11:00:00 1 18.70
3 1 1 point3 2010-08-05 10:00:00 2010-08-05 11:00:00 1 29.70
4 0 0 point1.1 2010-08-05 11:00:00 2010-08-05 12:00:00 2 8.47
5 0 1 point2.1 2010-08-05 11:00:00 2010-08-05 12:00:00 2 21.10
6 1 1 point3.1 2010-08-05 11:00:00 2010-08-05 12:00:00 2 32.50
7 0 0 point1.2 2010-08-05 12:00:00 2010-08-05 13:00:00 3 10.80
8 0 1 point2.2 2010-08-05 12:00:00 2010-08-05 13:00:00 3 20.20
9 1 1 point3.2 2010-08-05 12:00:00 2010-08-05 13:00:00 3 29.00
10 0 0 point1.3 2010-08-05 13:00:00 2010-08-05 14:00:00 4 9.74
11 0 1 point2.3 2010-08-05 13:00:00 2010-08-05 14:00:00 4 20.70
12 1 1 point3.3 2010-08-05 13:00:00 2010-08-05 14:00:00 4 30.50
ID newVal NewID
1 OldIDs1 1.67415 NewIDs12
2 OldIDs2 -1.47819 NewIDs11
3 OldIDs3 -1.63290 NewIDs10
4 OldIDs4 -0.97491 NewIDs9
5 OldIDs5 -0.76499 NewIDs8
6 OldIDs6 0.10300 NewIDs7
7 OldIDs7 -1.06830 NewIDs6
8 OldIDs8 0.47947 NewIDs5
9 OldIDs9 1.17482 NewIDs4
10 OldIDs10 1.03354 NewIDs3
11 OldIDs11 0.82826 NewIDs2
12 OldIDs12 -0.75862 NewIDs1
>
> sp = cbind(x = c(0,0,1), y = c(0,1,1))
> row.names(sp) = paste("point", 1:nrow(sp), sep="")
> sp = SpatialPoints(sp)
> library(xts)
Loading required package: zoo
Attaching package: 'zoo'
The following objects are masked from 'package:base':
as.Date, as.Date.numeric
> time = xts(1:4, as.POSIXct("2010-08-05", tz="GMT")+3600*(10:13))
> mydata = rnorm(length(sp)*length(time),mean=rep(m, 4))
> IDs = paste("ID", 1:length(mydata), sep = "_")
> mydata = data.frame(values = signif(mydata,3), ID=IDs)
> spx = SpatialPointsDataFrame(sp, data.frame(values = c("a", "b", "c")))
> try(stfdf <- STFDF(spx, time, mydata))
Error in .checkAttrIsUnique(object@sp, object@time, object@data) :
name conflict: attribute name(s) in data already present in sp slot of ST object
> timex = time
> names(timex) = "values"
> try(stfdf <- STFDF(sp, timex, mydata))
Error in .checkAttrIsUnique(object@sp, object@time, object@data) :
name conflict: attribute name(s) in data already present in time slot of ST object
> mydatax = mydata
> names(mydatax) = "x"
> try(stfdf <- STFDF(spx, timex, mydatax))
Error in validityMethod(object) :
name conflict: attribute names in sp and time slot must differ
> stfdf = STFDF(sp, timex, mydatax)
> try(stfdf[["values"]] <- 1:12)
Error in .checkAttrIsUnique(x@sp, x@time, x@data) :
name conflict: attribute name(s) in data already present in time slot of ST object
> stfdf = STFDF(spx, time, mydatax)
> try(stfdf[["values"]] <- 1:12)
Error in .checkAttrIsUnique(x@sp, x@time, x@data) :
name conflict: attribute name(s) in data already present in sp slot of ST object
>
> proc.time()
user system elapsed
0.828 0.316 0.832
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