geomerge.merge: Performing dataset merger [Auxiliary Function]

In geomerge: Geospatial Data Integration

Performing dataset merger [Auxiliary Function]

Description

Auxiliary function that performs the actual integration of the target frame with specified input data. The routine proceeds on dataset at a time.

Usage

geomerge.merge(data,data.name,target,standard.CRS,outdata,wghts,
		time, time.lag,spat.lag,zonal.fun,assignment,
		population.data,point.agg, t_unit,silent,optional.inputs)

Arguments

data	input dataset. See Details in geomerge.
data.name	name of input dataset
target	SpatialPolygonsDataFrame representing desired units of analysis. See Details in geomerge.
standard.CRS	Defines the CRS used. Default used in geomerge is WGS84.
outdata	data.frame containing integrated data relative to the SpatialPolygonsDataFrame target.
wghts	spatial weights calculated by link{geomerge.neighbor}.
time	specification of temporal window for temporal binning of point data by c(start_date, end_date, interval_length). Default = NA. See Details in geomerge.
time.lag	Boolean indicating whether or not first and second order temporal lag values of all variables are returned. Default = TRUE.
spat.lag	Boolean indicating whether or not first and second order spatial lag values of all variables are returned. Default = TRUE.
zonal.fun	object of class function applied to values of SpatRaster when generating zonal statistics for each target polygon. Default = sum. See Details in geomerge.
assignment	identification of either population- or area-weighting assignment rules when handling SpatialPolygonsDataFrame joins to target. Default = "area.assign". See Details in geomerge.
population.data	specifies data used for weighting if a population-based assignment rule is selected. See Details in geomerge.
point.agg	specification of aggregation format for data of type SpatialPointsDataFrame. Default = "cnt". See Details in geomerge.
t_unit	temporal unit used for dynamic point aggregation. Default = "days".
silent	Boolean switch to suppress any (non-critical) warnings and messages. Default = FALSE.
optional.inputs	Any optional inputs compatible with the extract function in terra.

Details

For details on different input parameters, please refer to the detailed documentation in geomerge.

Value

Returns an object of class data.frame that contains all information from merger to target to be added to target@data in the main geomerge function. The documentation in geomerge provides a detailed overview over the columns returned and their naming conventions

Author(s)

Karsten Donnay and Andrew M. Linke.

References

Andrew M. Linke, Karsten Donnay. (2017). "Scale Variability Misclassification: The Impact of Spatial Resolution on Effect Estimates in the Geographic Analysis of Foreign Aid and Conflict." Paper presented at the International Studies Association Annual Meeting, February 22-25 2017, Baltimore.

See Also

geomerge-package, geomerge, generateGrid

geomerge documentation built on Oct. 20, 2023, 5:08 p.m.