53 lines
1.5 KiB
R
53 lines
1.5 KiB
R
# Spatial Data Reallocation algorithm for FIGIS
|
|
inputFile <- "spread_input.csv"
|
|
outputFile <- "spread_output.csv"
|
|
|
|
#package needs
|
|
require(RFigisGeo)
|
|
|
|
#business logic
|
|
#-------------
|
|
print(Sys.time())
|
|
|
|
#read stats
|
|
print("Reading statistical data ...")
|
|
statistics <- read.table(inputFile, sep = ",", h = TRUE, quote = "\"")
|
|
print(head(statistics))
|
|
|
|
#read intersections
|
|
print("Reading intersection...")
|
|
intersectionURL <- paste("http://www.fao.org/figis/geoserver/GeoRelationship/ows?service=WFS&version=1.0.0&request=GetFeature&typeName=GeoRelationship:", inputIntersection, sep = "")
|
|
intersections <- readWFS(intersectionURL)
|
|
targetAreaField <- unlist(strsplit(inputIntersection,"_x_"))[1]
|
|
aggregateField <- NULL
|
|
print(includeCalculations)
|
|
if(!includeCalculations){
|
|
aggregateField <- unlist(strsplit(inputIntersection,"_x_"))[2]
|
|
}
|
|
|
|
#transform data (reallocate requires characters)
|
|
isNumericAreaRef <- is.numeric(statistics[,refAreaField])
|
|
if(isNumericAreaRef){
|
|
statistics[,refAreaField] <- as.character(statistics[,refAreaField])
|
|
}
|
|
|
|
#reallocation
|
|
result <- reallocate(
|
|
x = statistics,
|
|
y = intersections,
|
|
area.x = refAreaField,
|
|
area.y = targetAreaField,
|
|
by.x = NULL,
|
|
by.y = NULL,
|
|
data = statField,
|
|
warea = "INT_AREA",
|
|
wprob = NULL,
|
|
aggregates = aggregateField
|
|
)
|
|
|
|
if(isNumericAreaRef & includeCalculations){
|
|
result[,refAreaField] <- as.character(result[,refAreaField])
|
|
}
|
|
|
|
write.table(result, outputFile, row.names = FALSE, col.names = TRUE, sep=",", dec=".")
|
|
print(Sys.time()) |