4417机器学习简单数值题short

Expanding Window Final Training Length 2

题目

An expanding-window walk-forward starts with 18 months of training, then uses a 1-month embargo and a 4-month test block, advancing by 4 months each round across 59 months of history. What is the training-window length in the last complete fold?

解题计时

0:00

提交作答时记录，用于后续平均用时统计。

你的答案

数值

months

只填写数值本身，单位 months 已固定在输入框右侧。