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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Gompertz function ： ウィキペディア英語版 Gompertz function A Gompertz curve or Gompertz function, named after Benjamin Gompertz, is a sigmoid function. It is a type of mathematical model for a time series, where growth is slowest at the start and end of a time period. The right-hand or future value asymptote of the function is approached much more gradually by the curve than the left-hand or lower valued asymptote, in contrast to the simple logistic function in which both asymptotes are approached by the curve symmetrically. It is a special case of the generalised logistic function. ==Formula== :$y(t)=ae^\}=ae^0=a$ * ''b, c'' are positive numbers * ''b'' sets the displacement along the ''x'' axis (translates the graph to the left or right) * ''c'' sets the growth rate (''y'' scaling) * ''e'' is Euler's Number (''e'' = 2.71828...) 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Gompertz function」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.