[R-sig-Geo] How to filter a spatial object in sf

[Manuel Spínola]

I would like to retain the information stored in a larger spatial object
for a subset of features from a smaller spatial object.  I tried a
st_filter but I cannot achieve my goal.

nc = st_read(system.file("shape/nc.shp", package="sf"))

nc_smaller <- nc %>% filter(CNTY_ID %in% c(1825, 1827, 1828))

nc_filter <- st_filter(nc, nc_smaller)

The nc_smaller has 3 features, but the nc_filter ended with 8 features.  I
was expecting to have on 3 features in the nc_filter.



Manuel





-- 
*Manuel Spínola, Ph.D.*
Instituto Internacional en Conservación y Manejo de Vida Silvestre
Universidad Nacional
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