aggregateHalfDegreeGridToCountries

0th

Percentile

Aggregates global half degree gridded data to countries

Aggregates global half degree gridded data to countries (options for sum, mean, min, max ). Uses a very simple grid map defining a single country identity for each half degree cell. (other more sophisticated approaches dividing cells between multiple countries will be investigated in future). The country identity at each cell is specified in data(gridCountriesDegreesHalf).

Keywords
dplot
Usage
aggregateHalfDegreeGridToCountries(inFile = "", aggregateOption = "sum")
Arguments
inFile
either a gridascii filename or an sp SpatialGridDataFrame object specifying a global half degree grid dataset
aggregateOption
how to aggregate the data ('sum','mean','min','max')
Value

a dataframe with 2 columns : numeric country codes and the aggregated value for each country

See Also

mapHalfDegreeGridToCountries

Aliases
  • aggregateHalfDegreeGridToCountries
Examples


data(gridExData,envir=environment(),package="rworldmap")
gridExData <- get("gridExData")
#aggregating the gridded data to countries
dF <- aggregateHalfDegreeGridToCountries(gridExData)
#joining the aggregated data to a country map
sPDF <- joinCountryData2Map(dF, nameJoinColumn='UN', joinCode='UN')
#plotting the map
mapCountryData(sPDF,nameColumnToPlot='sum_pa2000.asc')


Documentation reproduced from package rworldmap, version 1.3-6, License: GPL (>= 2)

Community examples

Looks like there are no examples yet.