validate_vl: validate_vl

In hrbrmstr/vegalite: Tools to Encode Visualizations with the 'Grammar of Graphics'-Like 'Vega-Lite' 'Spec'

Description

Validate the Vega-Lite widget against the schema

Usage

validate_vl(vl, verbose = TRUE)

Arguments

vl	Vega-Lite object
verbose	TRUE or FALSE – should error reason be added as "errors" attribute in case of invalid schema

Details

Use of this function requires jsonvalidate package to be installed.

Value

TRUE if valid, FALSE if not

Examples

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}
  ]')

vl <- vegalite() %>%
  add_data(dat) %>%
  encode_x("a", "ordinal") %>%
  encode_y("b", "quantitative") %>%
  mark_bar()

validate_vl(vl)

hrbrmstr/vegalite documentation built on May 17, 2019, 5:38 p.m.