best_match_new: Find the crosswalk between the shp1 and shp2 polygons based...

In jcuriel-unc/arealOverlapr2: What the Package Does (One Line, Title Case)

Find the crosswalk between the shp1 and shp2 polygons based on highest overlap.

Description

This function takes the raw output of the overlap_dyad_creatr function (also part of the arealOverlapr pkg), and calculates slices the data to single unique values for the shp1 file. Observations are cut to the unique shp1 values for where the overlap between the two is maximized for a given grouping of dyadic data.

Usage

best_match_new(overlap_dyad_output, id1)

Arguments

overlap_dyad_output	The outputted data frame from the overlap_dyad_creatr function
id1	The ID field (chr) from the first shpfile of interest.
id2	The ID field (chr) from the second shpfile of interest.
census_fields	The string vector of other population fields of interest referring to census data that should be caclulated, which amounts to the raw weighted number of the individuals part of the demographic in question residing within the overlap of the two shpfile polygons of interest

Value

The data frame with the dyadic population overlap between the first and second shapefiles. The following are the values:

• id1 = The renamed id field from the first shpfile

• id2 = The renamed id field from the second shpfile

• correctly_matched_pop = The numeric field of the estimated number of people residing between within the overlying area between the shp1 polygon and the shp2 polygon with the highest degree of overlap.

Examples

zctas <- arealOverlapr::zctas
cbg_oh <- arealOverlapr::cbg_oh
oh_sen <- arealOverlapr::oh_sen
test_overlap <-weight_overlap(shp1 = zctas, shp_atom = cbg_oh, shp2 = oh_sen, pop_field = "POP2010")
test_output <- overlap_dyad_creatr(test_overlap, id1="ZCTA5CE10",id2="id", census_fields = c("WHITE","BLACK","MALES"))
test_best <- best_match_new(test_output, "id1")
 )

jcuriel-unc/arealOverlapr2 documentation built on March 27, 2022, 4:28 p.m.