logit

分对数

发音

US /ˈloʊd͡ʒɪt/
US /ˈlɑd͡ʒɪt/
UK /ˈlɒd͡ʒɪt/

词形变化

logits 复数 logits

释义与例句

n.
  1. 1.

    The inverse of the sigmoid or logistic function used in mathematics, especially in statistics. The logit of a number p between 0 and 1 is given by the formula

    数学

    operatorname logit(p)= log (p/(1-p))= log (p)- log (1-p).!,

  2. 2.

    A logistic regression, which applies such a mathematical function.

    非正式 商务 金融

词源

Blend of logistic + unit, by analogy with probit, coined by American statistician Joseph Berkson in 1944: “I use this term [logit] for ln p/q following Bliss, who called the analogous function which is linear on x for the normal curve ‘probit.’”

来源：wiktionary