Sf: st_nearest binary predicate?

[kendonB]

Would be a good addition for use in st_join and looks like it can rely on st_nearest_feature.

[kendonB]

Would enable this https://github.com/r-spatial/sf/issues/200

See also https://github.com/r-spatial/sf/issues/200#issuecomment-354680274

[tim-salabim]

You can already use st_nearest_feature in st_join.

library(sf)
library(mapview)

st_join(breweries, franconia, join = st_nearest_feature)

Simple feature collection with 225 features and 14 fields
geometry type:  POINT
dimension:      XY
bbox:           xmin: 9.462785 ymin: 48.90074 xmax: 11.93539 ymax: 50.44162
epsg (SRID):    4326
proj4string:    +proj=longlat +datum=WGS84 +no_defs
First 10 features:
                                                 brewery                    address zipcode       village  state founded number.of.types number.seasonal.beers NUTS_ID
1                                     Brauerei Rittmayer     Aischer Hauptstrasse 5   91325     Adelsdorf Bayern    1422               2                     1   DE257
2                                       Brauhaus Leikeim            Gewerbegebiet 4   96264 Altenkunstadt Bayern    1887              11                     1   DE24C
3  Ammerndorfer Bier Dorn-Braeu H. Murmann GmbH & Co. KG             Marktplatz 1-2   90614    Ammerndorf Bayern    1730              10                     0   DE258
4                          Wittelsbacher Turm Braeu GmbH       Wittelsbacher Turm 1   97688 Bad Kissingen Bayern      NA               6                     0   DE265
5                                    Arnsteiner Brauerei    Schweinfurter Strasse 9   97450      Arnstein Bayern    1885               5                     0   DE26A
6                                     Aufsesser Brauerei                 Im Tal 70b   91347       Aufsess Bayern    1886               7                     0   DE246
7                                       Brauhaus Doebler                Kornmarkt 6   91438 Bad Windsheim Bayern    1867               8                     0   DE25A
8                                     Ambraeusianum GmbH      Dominikanerstrasse 10   96049       Bamberg Bayern    2004               3                     3   DE241
9                         Brauerei Faessla GmbH & Co. KG Obere Koenigsstrasse 19-21   96052       Bamberg Bayern    1694               5                     0   DE241
10        Kaiserdom Specialitaeten Brauerei GmbH Bamberg       Breitaeckerstrasse 9   96049       Bamberg Bayern    1718               5                     1   DE241
    SHAPE_AREA SHAPE_LEN CNTR_CODE                          NAME_ASCI      district                  geometry
1  0.070179547 2.8476550        DE                 Erlangen-Hochstadt Mittelfranken POINT (10.88922 49.71979)
2  0.065241246 1.8021299        DE                        Lichtenfels   Oberfranken POINT (11.23873 50.12579)
3  0.038202003 1.0959424        DE                   Furth, Landkreis Mittelfranken  POINT (10.85194 49.4208)
4  0.143463358 2.6788579        DE                      Bad Kissingen  Unterfranken POINT (10.07837 50.16197)
5  0.165801021 3.0223493        DE                      Main-Spessart  Unterfranken   POINT (9.97323 49.9772)
6  0.159489736 3.6242023        DE                Bayreuth, Landkreis   Oberfranken POINT (11.22899 49.88405)
7  0.157685336 2.7758529        DE Neustadt a. d. Aisch-Bad Windsheim Mittelfranken  POINT (10.41602 49.5021)
8  0.006736012 0.3926225        DE          Bamberg, Kreisfreie Stadt   Oberfranken POINT (10.88484 49.89223)
9  0.006736012 0.3926225        DE          Bamberg, Kreisfreie Stadt   Oberfranken POINT (10.89281 49.89734)
10 0.006736012 0.3926225        DE          Bamberg, Kreisfreie Stadt   Oberfranken POINT (10.85234 49.90443)

Is there anything else that's missing?

[kendonB]

That works!