The log-logistic model is a statistical regression model for a nonnegative random outcome variable. It is applicable in cases where the logarithmized outcome variable follows a logistic distribution. In survival analysis, it is used to model hazard rates that are initially increasing and finally dec...
Fisk distribution;Log-logistic distribution Definition The log-logistic model is a statistical regression model for a nonnegative random outcome variable. It is applicable in cases where the logarithmized outcome variable follows a logistic distribution. In survival analysis, it is used to model hazard...
冯国双;谭德讲;刘韫宁;贺庆.四参数log-logistic模型在生物活性测定研究中的应用.药物分析杂志.2013.1849-1851冯国双,谭德讲,刘韫宁,等.四参数 log logistic模型在生物活 性测定研究 中的应用.药物分析杂志,2013,33(11):1849 1851. FengGS,TanDJ,LiuYN,etal.Applicationof4 parameterlog logisticmodelinbioassay....
The log-logistic model has flexible monotonic or nonmonotonic partial derivatives and thus is suitable to model various uni-type impairments. The proposed ALM metric adds the distortions due to each type of impairment in a log-logistic transformed space of subjective opinions. The features can be ...
3.10. Probit and Complementary Log-Log Models The logit model is not the only model appropriate for binary dependent variables. The LOGISTIC and GENMOD procedures can also estimate two other widely-used … - Selection from Logistic Regression Using SAS
Equations are developed to estimate the parameters of the existing finite-failure NHPP models, as well as the log-logistic model, based on failure data collected in the form of inter-failure times. We also present an analysis of two data sets, where the underlying failure process could not ...
weight w; model y=x/D=BIN link=LOG INterCEPT=-1LRCI; run; proc print data=para0; run; data para; set para0; PR=EXP(Estimate); LPR=EXP(LowerLRCL); UPR=EXP(UpperLRCL); keep Parameter PR LPR UPR; proc print data=para; run;...
The log-logistic model assumes that bacterial cells in a population do not have identical heat resistances and that these differences are permanent (Cole et al., 1993). This model has been applied to describe thermal inactivation of L. monocytogenes (Stephens et al., 1994), Y. enterocolitica ...
The purpose of this paper is to provide further study of the Marshall–Olkin log-logistic model that was first described by Gui (Appl Math Sci 7:3947–3961,2013). This model is both useful and practical in areas such as reliability and life testing. Some statistical and reliability ...