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Type 'q()' to quit R. > suppressPackageStartupMessages(library(stars)) > if (suppressPackageStartupMessages(require(sp, quietly = TRUE)) && require(spacetime, quietly = TRUE)) { + set.seed(1331) + Sys.setenv(TZ="UTC") + example(STFDF) + + x = st_as_stars(stfdf) + xx = as(x, "STFDF") + + # as.xts.stars: + library(xts) + xts = as.xts(x) + st_as_stars(xts) + st_as_stars(xts, dimensions = st_dimensions(x)) + + library(sp) + pts = SpatialPoints(rbind(c(0,0), c(0,1), c(1,0), c(1,1))) + gridded(pts) = TRUE + + tm = xts(1:10, as.Date("2010-01-01")+0:9) + stfdf = STFDF(pts, tm, data.frame(foo = seq_len(length(pts) * length(tm)))) + x = st_as_stars(stfdf) + xx = as(x, "STFDF") + + x = st_as_stars(as(stfdf, "STSDF")) + } STFDF> sp = cbind(x = c(0,0,1), y = c(0,1,1)) STFDF> row.names(sp) = paste("point", 1:nrow(sp), sep="") STFDF> library(sp) STFDF> sp = SpatialPoints(sp) STFDF> time = as.POSIXct("2010-08-05")+3600*(10:13) STFDF> m = c(10,20,30) # means for each of the 3 point locations STFDF> mydata = rnorm(length(sp)*length(time),mean=rep(m, 4)) STFDF> IDs = paste("ID",1:length(mydata)) STFDF> mydata = data.frame(values = signif(mydata,3), ID=IDs) STFDF> stfdf = STFDF(sp, time, mydata) STFDF> stfdf An object of class "STFDF" Slot "data": values ID 1 9.38 ID 1 2 21.10 ID 2 3 29.80 ID 3 4 11.50 ID 4 5 19.80 ID 5 6 31.20 ID 6 7 10.40 ID 7 8 20.50 ID 8 9 29.80 ID 9 10 10.30 ID 10 11 21.40 ID 11 12 29.40 ID 12 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 UTC" "2010-08-05 12:00:00 UTC" [3] "2010-08-05 13:00:00 UTC" "2010-08-05 14:00:00 UTC" STFDF> stfdf[1:2,] An object of class "STFDF" Slot "data": values ID 1 9.38 ID 1 2 21.10 ID 2 3 11.50 ID 4 4 19.80 ID 5 5 10.40 ID 7 6 20.50 ID 8 7 10.30 ID 10 8 21.40 ID 11 Slot "sp": SpatialPoints: x y point1 0 0 point2 0 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 UTC" "2010-08-05 12:00:00 UTC" [3] "2010-08-05 13:00:00 UTC" "2010-08-05 14:00:00 UTC" STFDF> stfdf[,1:2] An object of class "STFDF" Slot "data": values ID 1 9.38 ID 1 2 21.10 ID 2 3 29.80 ID 3 4 11.50 ID 4 5 19.80 ID 5 6 31.20 ID 6 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 Slot "endTime": [1] "2010-08-05 11:00:00 UTC" "2010-08-05 12:00:00 UTC" STFDF> stfdf[,,2] An object of class "STFDF" Slot "data": ID 1 ID 1 2 ID 2 3 ID 3 4 ID 4 5 ID 5 6 ID 6 7 ID 7 8 ID 8 9 ID 9 10 ID 10 11 ID 11 12 ID 12 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 UTC" "2010-08-05 12:00:00 UTC" [3] "2010-08-05 13:00:00 UTC" "2010-08-05 14:00:00 UTC" STFDF> stfdf[,,"values"] An object of class "STFDF" Slot "data": values 1 9.38 2 21.10 3 29.80 4 11.50 5 19.80 6 31.20 7 10.40 8 20.50 9 29.80 10 10.30 11 21.40 12 29.40 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 UTC" "2010-08-05 12:00:00 UTC" [3] "2010-08-05 13:00:00 UTC" "2010-08-05 14:00:00 UTC" STFDF> stfdf[1,] values ID timeIndex 2010-08-05 10:00:00 9.38 ID 1 1 2010-08-05 11:00:00 11.50 ID 4 2 2010-08-05 12:00:00 10.40 ID 7 3 2010-08-05 13:00:00 10.30 ID 10 4 STFDF> stfdf[,2] coordinates values ID 1 (0, 0) 11.5 ID 4 2 (0, 1) 19.8 ID 5 3 (1, 1) 31.2 ID 6 STFDF> as(stfdf[,,1], "xts") point1 point2 point3 2010-08-05 10:00:00 9.38 21.1 29.8 2010-08-05 11:00:00 11.50 19.8 31.2 2010-08-05 12:00:00 10.40 20.5 29.8 2010-08-05 13:00:00 10.30 21.4 29.4 STFDF> 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 STFDF> # examples for [[, [[<-, $ and $<- STFDF> stfdf[[1]] [1] 9.38 21.10 29.80 11.50 19.80 31.20 10.40 20.50 29.80 10.30 21.40 29.40 STFDF> stfdf[["values"]] [1] 9.38 21.10 29.80 11.50 19.80 31.20 10.40 20.50 29.80 10.30 21.40 29.40 STFDF> stfdf[["newVal"]] <- rnorm(12) STFDF> stfdf$ID [1] "ID 1" "ID 2" "ID 3" "ID 4" "ID 5" "ID 6" "ID 7" "ID 8" "ID 9" [10] "ID 10" "ID 11" "ID 12" STFDF> stfdf$ID = paste("OldIDs", 1:12, sep="") STFDF> stfdf$NewID = paste("NewIDs", 12:1, sep="") STFDF> stfdf An object of class "STFDF" Slot "data": values ID newVal NewID 1 9.38 OldIDs1 -0.3125824 NewIDs12 2 21.10 OldIDs2 -1.0536246 NewIDs11 3 29.80 OldIDs3 -0.7188880 NewIDs10 4 11.50 OldIDs4 -1.0525404 NewIDs9 5 19.80 OldIDs5 -0.8441413 NewIDs8 6 31.20 OldIDs6 1.1420848 NewIDs7 7 10.40 OldIDs7 1.9479070 NewIDs6 8 20.50 OldIDs8 -0.4512836 NewIDs5 9 29.80 OldIDs9 0.6695716 NewIDs4 10 10.30 OldIDs10 0.1269003 NewIDs3 11 21.40 OldIDs11 -0.7273297 NewIDs2 12 29.40 OldIDs12 -0.8151803 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 UTC" "2010-08-05 12:00:00 UTC" [3] "2010-08-05 13:00:00 UTC" "2010-08-05 14:00:00 UTC" STFDF> x = stfdf[stfdf[1:2,],] STFDF> all.equal(x, stfdf[1:2,]) [1] TRUE STFDF> all.equal(stfdf, stfdf[stfdf,]) # converts character to factor... [1] TRUE Loading required package: zoo Attaching package: 'zoo' The following objects are masked from 'package:base': as.Date, as.Date.numeric only the first attribute will used; maybe use merge() first? > > proc.time() user system elapsed 1.20 0.23 1.42