This website is for version 5. You can find the documentation for version 4 here.


class altair.BinTransform(bin=Undefined, field=Undefined, **kwds)#

BinTransform schema wrapper

binbool, dict, BinParams

An object indicating bin properties, or simply true for using default bin parameters.

fieldstr, FieldName

The data field to bin.

asstr, FieldName, Sequence[str, FieldName]

The output fields at which to write the start and end bin values. This can be either a string or an array of strings with two elements denoting the name for the fields for bin start and bin end respectively. If a single string (e.g., "val" ) is provided, the end field will be "val_end".

__init__(bin=Undefined, field=Undefined, **kwds)#


__init__([bin, field])

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 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