altair.FieldValidPredicate

class altair.FieldValidPredicate(field=Undefined, valid=Undefined, timeUnit=Undefined, **kwds)

FieldValidPredicate schema wrapper

Mapping(required=[field, valid])

Parameters:

fieldFieldName

Field to be tested.

validboolean

If set to true the field’s value has to be valid, meaning both not null and not NaN.

timeUnitanyOf(TimeUnit, TimeUnitParams)

Time unit for the field to be tested.

__init__(field=Undefined, valid=Undefined, timeUnit=Undefined, **kwds)

Methods

__init__([field, valid, timeUnit])
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, 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