altair.WindowFieldDef#
- class altair.WindowFieldDef(op=Undefined, field=Undefined, param=Undefined, **kwds)#
WindowFieldDef schema wrapper
Mapping(required=[op, as])
- Attributes
- opanyOf(
AggregateOp,WindowOnlyOp) The window or aggregation operation to apply within a window (e.g.,
"rank","lead","sum","average"or"count"). See the list of all supported operations here.- field
FieldName The data field for which to compute the aggregate or window function. This can be omitted for window functions that do not operate over a field such as
"count","rank","dense_rank".- paramfloat
Parameter values for the window functions. Parameter values can be omitted for operations that do not accept a parameter.
See the list of all supported operations and their parameters here.
- as
FieldName The output name for the window operation.
- opanyOf(
- __init__(op=Undefined, field=Undefined, param=Undefined, **kwds)#
Methods
__init__([op, field, 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, 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