geomerge.merge: Performing dataset merger [Auxiliary Function]

Description Usage Arguments Details Value Author(s) References See Also

View source: R/geomerge.merge.R

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

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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 RasterLayer 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 raster.

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 [email protected] 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 Aug. 1, 2018, 9:03 a.m.