jackknife

n. 大折合式刀, 屈体跳水 vi. 弯身 vt. 用大折刀切

词形变化

jackknives 复数 jackknives jackknifed jackknifes 三单 jackknifes jackknifing jackknifing 现在分词 jackknifed 过去式 jackknifed 过去分词

jack-knife jacknife

1.

Alternative spelling of jack-knife.
2.

A resampling method that applies estimators to all subsamples that each omit a single different group (possibly of a single datapoint) of the original sample to provide a sample distribution of the estimate.

数学

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