lenskit.splitting.LastN

class lenskit.splitting.LastN(n, field='timestamp')

Bases: HoldoutMethod

Select a fixed number of test rows per user/item, based on ordering by a field.

Stability:

Caller (see Stability Levels).

Parameters:

• n (int) – The number of test items to select.

• field (str) – The field to order by.

__init__(n, field='timestamp')

Parameters:

• n (int)

• field (str)

Methods

__init__(n[, field])

Attributes

n
field