This function is an extension of the Small Area Estimation (SAE) model. Geoadditive Small Area Model is a combination of the geoadditive model with the Small Area Estimation (SAE) model, by adding geospatial information to the SAE model.
Ketut Karang Pradnyadika, Ika Yuni Wulansari
Ketut Karang Pradnyadika 221709776@stis.ac.id
You can install the released version of geoSAE from CRAN or find my github repository Github
#Load the dataset for unit level
library(geoSAE)
data(dataUnit)
#Load the dataset for spline-2
data(zspline)
#Load the dataset for area level
data(dataArea)
#Construct the data frame
y <- dataUnit$y
x1 <- dataUnit$x1
x2 <- dataUnit$x2
x3 <- dataUnit$x3
formula <- y~x1+x2+x3
zspline <- as.matrix(zspline[,1:6])
dom <- dataUnit$area
xmean <- cbind(1,dataArea[,3:5])
zmean <- dataArea[,7:12]
number <- dataUnit$number
area <- dataUnit$area
data <- data.frame(number, area, y, x1, x2, x3)
#Estimate EBLUP
eblup_geosae <- eblupgeo(formula, zspline, dom, xmean, zmean, data)
eblup_geosae$eblup
#> [,1]
#> [1,] 29.04625
#> [2,] 33.43651
#> [3,] 34.66706
#> [4,] 33.81857
#> [5,] 23.52744
#> [6,] 22.89752
#> [7,] 21.86852
#> [8,] 21.26004
#> [9,] 33.73404
#> [10,] 38.43505
#> [11,] 33.77393
#> [12,] 28.98660
#> [13,] 32.29918
#> [14,] 24.31817
#> [15,] 31.23797
#Estimate MSE
mse_geosae <- pbmsegeo(formula,zspline,dom,xmean,zmean,data,B=100)
#>
#> Bootstrap procedure with B = 100 iterations starts.
mse_geosae$mse
#> [1] 2.052566 1.978709 2.231913 10.926587 1.480916 4.157471 3.172412
#> [8] 1.839984 2.466619 1.563998 3.051762 16.937056 16.238457 2.648152
#> [15] 5.538344
## eblup_geosae$eblup #to see the result of EBLUPs with Geoadditive Small Area Model each area
## mse_geosae$mse #to see the result of MSE with Geoadditive Small Area Model each area
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