翻訳と辞書 Words near each other ・ One in a Million (Hannah Montana song) ・ One in a Million (horse) ・ One in a Million (Johnny Lee song) ・ One in a Million (Malaysian TV series) ・ One in a Million (Ne-Yo song) ・ One in a Million (Pete Rock & CL Smooth song) ・ One in a Million (season 1) ・ One in a Million (season 2) ・ One in a Million (season 3) ・ One in a Million (U.S. TV series) ・ One in a Million You ・ One in Every Crowd ・ One in Four ・ One in Ten ・ One in Ten (organization) ・ One in ten rule ・ One in the Chamber ・ One in the Sun ・ One in Three Hundred ・ One in Two – Two in One ・ One in, one out policy ・ One Inch Masters ・ One Inch Punch ・ One Indiana Square ・ One instruction set computer ・ One International Place ・ One Iowa ・ One Is a Lonely Number ・ One Is Business, the Other Crime ・ One Is the Other Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク One in ten rule ： ウィキペディア英語版 One in ten rule In statistics, the one in ten rule is a rule of thumb for how many predictors can be derived from data when doing regression analysis (in particular proportional hazards models) without risk of overfitting. The rule states that one predictive variable can be studied for every ten events.〔Harrell FE Jr, Lee KL, Califf RM, Pryor DB, Rosati RA. Regression modelling strategies for improved prognostic prediction. Stat Med. 1984 Apr–Jun;3(2):143–52.〕〔Harrell FE Jr, Lee KL, Mark DB. Multivariable prognostic models: issues in developing models, evaluating assumptions and adequacy, and measuring and reducing errors. Stat Med. 1996 Feb 28;15(4):361–87. http://www.unt.edu/rss/class/Jon/MiscDocs/Harrell_1996.pdf〕〔Peter Peduzzi, John Concato, Elizabeth Kemper, Theodore R. Holford, Alvan R. Feinstein. A simulation study of the number of events per variable in logistic regression analysis. Journal of Clinical Epidemiology. Volume 49, Issue 12 , Pages 1373–1379, December 1996〕〔http://painconsortium.nih.gov/symptomresearch/chapter_8/sec8/cess8pg2.htm〕 For example, if a sample of 200 patients are studied and 20 patients die during the study, only two pre-specified predictors can reliably be fitted to the total data. If more are fitted, overfitting is likely and the results will not predict well outside the training data. It is not uncommon to see the 1:10 rule violated in fields with many variables (e.g. gene expression studies in cancer), decreasing the confidence in reported findings.〔Ernest S. Shtatland, Ken Kleinman, Emily M. Cain. Model building in Proc PHREG with automatic variable selection and information criteria. Paper 206–30 in SUGI 30 Proceedings, Philadelphia, Pennsylvania April 10–13, 2005. http://www2.sas.com/proceedings/sugi30/206-30.pdf〕 The one in ten rule is a minimum; a "one in 20 rule" has been suggested, indicating the need for shrinkage of regression coefficients, and a "one in 50 rule" for stepwise selection with the default p-value of 5%.〔〔Steyerberg EW, Eijkemans MJ, Harrell FE, Jr., Habbema JD. Prognostic modelling with logistic regression analysis: a comparison of selection and estimation methods in small data sets. Stat Med. 2000a;19:1059–1079.〕 ==References== 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「One in ten rule」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.