altair.FoldTransform

class altair.FoldTransform(fold=Undefined, **kwds)

FoldTransform schema wrapper.

Parameters:

foldSequence[str, FieldName]

An array of data fields indicating the properties to fold.

asSequence[str, FieldName]

The output field names for the key and value properties produced by the fold transform. Default value: ["key", "value"]

__init__(fold=Undefined, **kwds)

Methods

__init__([fold])
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([validate, ignore, context])	Return a dictionary representation of the object.
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.