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薛真 · 2020年03月04日

问一道题:NO.PZ2020011101000048

问题如下:

How are bootstrap samples generated using the circular block bootstrap (CBB)?

选项:

解释:

The CBB uses samples from the original data in blocks of size m. Each block is chosen by selecting the index for the first observation in the block. A total of [nm\frac{n}{m}] blocks are selected, where n is the sample size where [\cdot] selects the smallest integer larger than its input. If the number of observations selected is larger than m due to rounding, only the first n are kept. If a block starts in the last m - 1 observations, the block wraps around to the start of the sample.

是不是指的是moving block bootstrap 

1 个答案

品职答疑小助手雍 · 2020年03月04日

同学你好,是的。