Get triplets with subject verb object.

Get triplets with subject verb object.

get_triplets(
  subject = "?subject",
  verb = "?verb",
  object = "?object",
  optional = FALSE,
  label = NA,
  limit = NA,
  within_box = c(NA, NA),
  within_distance = c(NA, NA),
  track = NA
)

Arguments

subject

an anonymous variable (for instance, and by default, "?subject") or item (for instance "Q456"))
verb

the property (for instance "wdt:P190")
object

an anonymous variable (for instance, and by default, "?object") or item (for instance "Q456"))
label

a vector of variables for which to include a label column (defaults to NA)
limit

the max number of items sent back
within_box

if provided, rectangular bounding box for the triplet query. Provided as list(southwest=c(long=...,lat=...),northeast=c(long=...,lat=...))
within_distance

if provided, circular bounding box for the triplet query. Provided as list(center=c(long=...,lat=...), radius=...), with radius in kilometers. The center can also be provided as a variable (for instance, "?location") for the center coordinates to be retrieved directly from the query.
track

element to add as a column in result to track which item the information refers to

Examples

get_triplets(subject="?city",verb="wdt:P31/wdt:P279*",object="wd:Q515", label=c("?city"), limit=10)

#> # A tibble: 10 x 2
#>    city                                     cityLabel                 
#>    <chr>                                    <chr>                     
#>  1 http://www.wikidata.org/entity/Q309436   Ksar of Aït Benhaddou     
#>  2 http://www.wikidata.org/entity/Q817274   Beni Isguen               
#>  3 http://www.wikidata.org/entity/Q2670896  Ksar Ouled Soltane        
#>  4 http://www.wikidata.org/entity/Q3200131  Ksar Ifegh                
#>  5 http://www.wikidata.org/entity/Q3200135  Ksar of Lamaarka          
#>  6 http://www.wikidata.org/entity/Q3818705  Ksar Nalut                
#>  7 http://www.wikidata.org/entity/Q11736787 Ksar Hallouf              
#>  8 http://www.wikidata.org/entity/Q12233025 Ksar Beni Barka           
#>  9 http://www.wikidata.org/entity/Q16593169 Ksar of Taourirt          
#> 10 http://www.wikidata.org/entity/Q21029712 Ksar of Rgabi N'Ait Hassou
get_triplets(subject="wd:Q355",verb="wdt:P625",object="?coords")

#> NULL
get_triplets(subject="wd:Q355",verb="wdt:P625",object="?coords", track="subject")

#> # A tibble: 1 x 1
#>   tracking
#>   <chr>   
#> 1 wd:Q355