add_data {vegalite} | R Documentation |
Vega-Lite is more lightweight than full Vega. However, the spec is flexible enough to support embedded data or using external sources that are in JSON, CSV or TSV format.
add_data(vl, source, format_type = NULL)
vl |
a Vega-Lite object |
source |
you can specify a (fully qualified) URL or an existing
|
format_type |
if |
dat <- jsonlite::fromJSON('[
{"a": "A","b": 28}, {"a": "B","b": 55}, {"a": "C","b": 43},
{"a": "D","b": 91}, {"a": "E","b": 81}, {"a": "F","b": 53},
{"a": "G","b": 19}, {"a": "H","b": 87}, {"a": "I","b": 52}
]')
vegalite() %>%
add_data(dat) %>%
encode_x("a", "ordinal") %>%
encode_y("b", "quantitative") %>%
mark_bar()