altair.ConditionalParameterValueDefstringnullExprRef#

class altair.ConditionalParameterValueDefstringnullExprRef(param=Undefined, value=Undefined, empty=Undefined, **kwds)#

ConditionalParameterValueDefstringnullExprRef schema wrapper

Mapping(required=[param, value])

Parameters:
paramParameterName

Filter using a parameter name.

valueanyOf(string, None, ExprRef)

A constant value in visual domain (e.g., "red" / "#0099ff" / gradient definition for color, values between 0 to 1 for opacity).

emptyboolean

For selection parameters, the predicate of empty selections returns true by default. Override this behavior, by setting this property empty: false.

__init__(param=Undefined, value=Undefined, empty=Undefined, **kwds)#

Methods

__init__([param, value, empty])

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