翻訳と辞書
Words near each other
・ Location Hunting in Palestine
・ Location hypotheses of Atlantis
・ Location identifier
・ Location independence
・ Location information server
・ Location intelligence
・ Location Intelligence Conference
・ Location library
・ Location manager
・ Location Managers Guild of America
・ Location model
・ Location number
・ Location obfuscation
・ Location of Earth
・ Location of Offices Bureau
Location parameter
・ Location scouting
・ Location search optimization
・ Location shooting
・ Location Songs
・ Location test
・ Location testing for Gaussian scale mixture distributions
・ Location theory
・ Location transparency
・ Location View
・ Location, Location, Location
・ Location, West Virginia
・ Location-allocation
・ Location-based advertising
・ Location-based authentication


Dictionary Lists
翻訳と辞書 辞書検索 [ 開発暫定版 ]
スポンサード リンク

Location parameter : ウィキペディア英語版
Location parameter

In statistics, a location family is a class of probability distributions that is parametrized by a scalar- or vector-valued parameter x_0, which determines the "location" or shift of the distribution. Formally, this means that the probability density functions or probability mass functions in this class have the form
:f_(x) = f(x - x_0).
Here, x_0 is called the location parameter. Examples of location parameters include the mean, the median, and the mode.
Thus in the one-dimensional case if x_0 is increased, the probability density or mass function shifts rigidly to the right, maintaining its exact shape.
A location parameter can also be found in families having more than one parameter, such as location-scale families. In this case, the probability density function or probability mass function will be a special case of the more general form
:f_(x) = f_\theta(x-x_0)
where x_0 is the location parameter, ''θ'' represents additional parameters, and f_\theta is a function parametrized on the additional parameters.
==Additive noise==
An alternative way of thinking of location families is through the concept of additive noise. If x_0 is a constant and ''W'' is random noise with probability density f_W(w), then X = x_0 + W has probability density f_(x) = f_W(x-x_0) and its distribution is therefore part of a location family.

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「Location parameter」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.