altair.LookupData#

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

Refer to LookupData LookupData schema wrapper.

Parameters:
datadict, Data, UrlData, Generator, NamedData, DataSource, InlineData, SphereGenerator, SequenceGenerator, GraticuleGenerator

Secondary data source to lookup in.

keystr, FieldName

Key in data to lookup.

fieldsSequence[str, FieldName]

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

Methods

__init__([data, key, fields])

Refer to LookupData LookupData schema wrapper.

copy([deep, ignore])

Return a copy of the object.

from_dict(dct[, validate])

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, indent, sort_keys, ...])

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.