altair.ExtentTransform

class altair.ExtentTransform(extent=Undefined, param=Undefined, **kwds)

ExtentTransform schema wrapper

Parameters:

extentstr, FieldName

The field of which to get the extent.

paramstr, ParameterName

The output parameter produced by the extent transform.

__init__(extent=Undefined, param=Undefined, **kwds)

Methods

__init__([extent, param])
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([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