jackknife
IPA: dʒˈæknaɪf
noun
- (statistics) 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.
- Alternative spelling of jack-knife [A compact folding knife.]
verb
- Alternative spelling of jack-knife [To fold in the middle, as a jackknife does.]
Examples of "jackknife" in Sentences
- "jackknife" - Version: 2.4.2, 8/10/2009 08: 58PM PST
- "jackknife" into Turner's path, striking her vehicle head-on.
- A jackknife, right off the porch, and an Olympic-style swim for the opposite shore.
- As I tried a jackknife dive from my tiptoes, a huge wave engulfed me just as I took a breath to submerge.
- That caused one of those vehicles to "jackknife" into the lane of traffic that Turner was driving in, striking her vehicle head-on.
- Next to them, even the best of the jackknife legs and splayed-out lifts on "Dancing With the Stars" or "So You Think You Can Dance" look like horrifying mutations from Planet Schlock.
- To rephrase Steve McIntyre if he will forgive me the jackknife is the statistical technique of resampling by running the estimate on subsamples of N-q from a sample of N then averaging the results.