lenskit.data.schema.AttrLayout

class lenskit.data.schema.AttrLayout

Bases: enum.Enum

Possible layouts for entity attributes.

SCALAR = 'scalar'

Scalar (non-list, non-vector) attribute value.

LIST = 'list'

Homogenous, variable-length list of attribute values.

VECTOR = 'vector'

Homogenous, fixed-length vector of numeric attribute values.

SPARSE = 'sparse'

Homogenous, fixed-length sparse vector of numeric attribute values.