altair.LookupData#
- class altair.LookupData(data=Undefined, key=Undefined, fields=Undefined, **kwds)#
- __init__(data=Undefined, key=Undefined, fields=Undefined, **kwds)#
- Refer to - LookupDataLookupData 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. 
 
- datadict, 
 
 - Methods - __init__([data, key, fields])- Refer to - LookupDataLookupData 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. 
