altair.LookupData

class altair.LookupData(data=Undefined, key=Undefined, fields=Undefined, **kwds)

LookupData schema wrapper

Mapping(required=[data, key])

Attributes

dataData

Secondary data source to lookup in.

keyFieldName

Key in data to lookup.

fieldsList(FieldName)

Fields in foreign data or selection to lookup. If not specified, the entire object is queried.

__init__(data=Undefined, key=Undefined, fields=Undefined, **kwds)

Methods

__init__([data, key, fields])
copy([deep, ignore])	Return a copy of the object
from_dict(dct[, validate, _wrapper_classes])	Construct class from a dictionary representation
from_json(json_string[, validate])	Instantiate the object from a valid JSON string
resolve_references([schema])	Resolve references in the context of this object's schema or root schema.
to_dict(*args, **kwargs)	Convert the chart to a dictionary suitable for JSON export.
to_json([validate, ignore, context, indent, ...])	Emit the JSON representation for this object as a string.
validate(instance[, schema])	Validate the instance against the class schema in the context of the rootschema.
validate_property(name, value[, schema])	Validate a property against property schema in the context of the rootschema