单词 harmonic mean 释义 BETA

Examples ofharmonic mean

Dictionary> Examples ofharmonic meanharmonic meanisn’t in the Cambridge Dictionary yet. You can help!Add a definitionThis is much larger than the value for chromosomes from nature, as might be expected since it involves an arithmetic rather than aharmonicmean.From theCambridge English CorpusThe formula is a function of theharmonicmeanof the recombination frequencies between all the possible pairs of loci.From theCambridge English CorpusTheharmonicmeanprocedure was used to account for unequal sample sizes.From theCambridge English CorpusHowever, it is a well-established result that for a given sample of nonnegative, non-constant observations, the arithmetic mean will always exceed theharmonicmean.From theCambridge English CorpusThis is theharmonicmeanof 60 and 30.From theCambridge English CorpusFor both estimators, simulations demonstrate that the performance is determined mainly by theharmonicmeanof sample sizes (data not shown).From theCambridge English CorpusTheharmonicmeanis exploited to this end.From theCambridge English CorpusTheharmonicmeanof recall and precision is called f-measure.From theCambridge English CorpusBoth the arithmetic mean, ai = (n +1)/2, and theharmonicmean, hl = 2n- l/(n + 1), are easily determined as rational, commensurable values.From theCambridge English CorpusIt is theharmonicmeanof the two totals.FromWikipediaThis example is from Wikipedia and may be reused under a CC BY-SA license.The focus so determined would be about 1.3 m, the approximateharmonicmeanof the near and far distances.FromWikipediaThis example is from Wikipedia and may be reused under a CC BY-SA license.The metric is based on the weightedharmonicmeanof unigram precision and unigram recall.FromWikipediaThis example is from Wikipedia and may be reused under a CC BY-SA license.Theharmonicmeanplays a role in maximum likelihood estimation for the four parameter case, in addition to the geometric mean.FromWikipediaThis example is from Wikipedia and may be reused under a CC BY-SA license.In population genetics, theharmonicmeanis used when calculating the effects of fluctuations in generation size on the effective breeding population.FromWikipediaThis example is from Wikipedia and may be reused under a CC BY-SA license.Equivalently, theharmonicmeanis the reciprocal of the arithmetic mean of the reciprocals.FromWikipediaThis example is from Wikipedia and may be reused under a CC BY-SA license.Another example of a weighted mean is the weightedharmonicmean.FromWikipediaThis example is from Wikipedia and may be reused under a CC BY-SA license.

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