Manually enforce contiguity between two areas
Arguments
- nb
a neighbourhood `"list"` or `"matrix"`, or an `sf` dataframe with a neighbourhood column called `"nb"`.
- x
name or number of first area.
- y
name or number of second area.
Value
An amended neighbourhood `"list"`, `"matrix"`, or `sf` dataframe with a neighbourhood column called `"nb"`.
Examples
st_bridges(uk_election,"constituency_name") |>
st_manual_join_nb("Gower","St Ives")
#> Simple feature collection with 632 features and 9 fields
#> Geometry type: GEOMETRY
#> Dimension: XY
#> Bounding box: xmin: 5513.182 ymin: 7057.949 xmax: 655655.4 ymax: 1218620
#> Projected CRS: OSGB36 / British National Grid
#> First 10 features:
#> degree_educated health_not_good white con_swing population
#> 1 -1.21794372 2.4694480 0.6393329 8.5917223 66133
#> 2 0.04609836 0.5666903 0.6561204 2.2040312 56415
#> 3 0.26593462 -0.8699365 0.1441816 7.1285493 99654
#> 4 1.62837520 -1.7731408 0.3038995 2.9732599 93197
#> 5 -1.35386780 0.8155333 0.6963927 -0.2362672 85845
#> 6 -0.21109416 -1.3619136 -0.1675498 5.6993250 103922
#> 7 -0.74760203 0.8047040 0.3409127 7.4304029 76974
#> 8 1.63438559 -1.1613230 0.1605045 -0.4813182 96591
#> 9 -0.65926781 -0.1982048 0.6815335 5.6002269 82505
#> 10 -0.96445730 0.9975218 0.6930268 9.4698002 87883
#> region county constituency_name
#> 1 Wales West Glamorgan Aberavon
#> 2 Wales Clwyd Aberconwy
#> 3 Scotland Scotland Aberdeen North
#> 4 Scotland Scotland Aberdeen South
#> 5 Scotland Scotland Airdrie and Shotts
#> 6 South East Hampshire Aldershot
#> 7 West Midlands West Midlands Aldridge-Brownhills
#> 8 North West Greater Manchester Altrincham and Sale West
#> 9 Wales Clwyd Alyn and Deeside
#> 10 East Midlands Derbyshire Amber Valley
#> nb geometry
#> 1 80, 157, 371, 419, 451, 547 POLYGON ((290786.3 202886.7...
#> 2 12, 141, 181 POLYGON ((283209.3 381440.5...
#> 3 4, 239, 595 MULTIPOLYGON (((395379.7 80...
#> 4 3, 595 POLYGON ((396214 805849.7, ...
#> 5 142, 156, 309, 327, 332, 369 POLYGON ((290854.4 662154.9...
#> 6 70, 395, 517, 544 POLYGON ((485408.1 159918.6...
#> 7 49, 106, 325, 509, 546, 549, 577, 578 POLYGON ((406519.5 305056.1...
#> 8 540, 550, 583, 584, 628 POLYGON ((379104.1 393145.7...
#> 9 136, 140, 141, 162, 205, 624 POLYGON ((331643.4 372873.5...
#> 10 15, 61, 93, 165, 212, 352 POLYGON ((444868.5 353960.2...