census_linking_focal: Link Coordinates to German Census 2011 Data by Using Focal...

In stefmue/georefum: Processing and Linking of Spatial Data Within the GeorefUm Project at GESIS

Description

This function performs spatial linking based on coordinates data and the results of focal analyses based on raster grid cell data from the German Census 2011. By default it uses simulated coordinates data for demonstration purposes. Own coordinates, however, can be used as well.

Usage

census_linking_focal(download = FALSE, own.data = FALSE,
  which = c("Einwohner", "Frauen_A", "Alter_D", "unter18_A", "ab65_A",
  "Auslaender_A", "HHGroesse_D", "Leerstandsquote", "Wohnfl_Bew_D",
  "Wohnfl_Whg_D"), categorical = FALSE, set.missings = TRUE,
  data.path = ".", coords.file = "", coords.object = "",
  focal.matrix = matrix(c(1, 1, 1, 1, 1, 1, 1, 1, 1), nr = 3, nc = 3),
  fun = "mean", suffix = "mean")

Arguments

download	Download census data (calls georefum::download.census())
own.data	Use own already downloaded census data (calls georefum::rasterize.census(), original filenames must be preserved)
which	Vector of Census attributeses that should be linked to the data
data.path	Has to be defined when using option download = or own.data =
coords.file	Path to file with coordinates; must be formatted as csv text file with a 'X' andheader...
coords.object	An R object ("Rdata" or "rda") containing the coordinates
focal.matrix	Matrix on which upon focal analyses are computed; cells can be weighted as well as set to NA (for details see function raster::focal())
fun	Function that is used in the focal analyses
suffix	Suffix that is appended to variable names
set.missing	Toggle whether to set missings on Census attributes
na.delete	logical. If TRUE, NA will be removed from focal computations. The result will only be NA if all focal cells are NA. Except for some special cases (weights of 1, functions like min, max, mean), using na.rm=TRUE is generally not a good idea in this function because it will unbalance the effect of the weights

Value

A data.frame with census attributes based on focal analyses for each coordinate

stefmue/georefum documentation built on May 30, 2019, 10:44 a.m.