نتایج جستجو برای: smirnov test ks

تعداد نتایج: 821616  

Journal: :Communications in Statistics - Simulation and Computation 2021

Kolmogorov–Smirnov (KS) statistic is a non-parametric based on the empirical distribution function. For one-sample case, it uses supremum distance between an function (EDF) and pre-specified cumulative (CDF). two-sample measures maximum of two EDFs. KS test, as well other EDF-based tests such Anderson-Darling (AD) test Cramer-von Mises (CvM) has been widely used in statistical analysis. To addr...

2016
Manon L. Ragonnet-Cronin Mohaned Shilaih Huldrych F. Günthard Emma B. Hodcroft Jürg Böni Esther Fearnhill David Dunn Sabine Yerly Thomas Klimkait Vincent Aubert Wan-Lin Yang Alison E. Brown Samantha J. Lycett Roger Kouyos Andrew J. Leigh Brown

Phylogenetic clustering approaches can elucidate HIV transmission dynamics. Comparisons across countries are essential for evaluating public health policies. Here, we used a standardised approach to compare the UK HIV Drug Resistance Database and the Swiss HIV Cohort Study while maintaining data-protection requirements. Clusters were identified in subtype A1, B and C pol phylogenies. We generat...

2014
Lionel Van Holle Vincent Bauchau

PURPOSE We evaluated the use of logistic regression to model the probabilities of spontaneously reported vaccine-event pairs being adverse reactions following immunization (ARFI), using disproportionality and unexpectedness of time-to-onset (TTO) distributions as predictive variables and the presence of events in the global product information as a dependent variable. METHODS We used spontane...

2011
Martin ŘEZÁČ

Credit scoring models are widely used to predict the probability of client default. To measure the quality of such scoring models it is possible to use quantitative indices such as the Gini index, Kolmogorov-Smirnov statistics (KS), Lift, the Mahalanobis distance, and information statistics. This paper reviews and illustrates the use of these indices in practice.

2014
Ashwini Kumar Srivastava

A very basic problem in reliability modeling is to obtain information about the form of the population from which the sample is drawn. Goodness of fit test is employed on different real data sets to determine how well the observed sample data "fits" on proposed model for reliability analysis. In this paper, we obtain the tables and graphs of critical values of Kolmogorov-Smirnov (KS) test, and ...

Journal: :The Journal of antibiotics 1989
S Nakanishi K Ando I Kawamoto T Yasuzawa H Sano H Kase

Novel inhibitors of Ca2+ and calmodulin-dependent cyclic nucleotide phosphodiesterase were isolated from the culture broth of a fungus, Mollisia ventosa KAC-1148. They were designated as KS-504a, KS-504b and KS-504d. A degradative product of KS-504a, called KS-504e, was also isolated and found to inhibit the enzyme. The 50% inhibitory concentration (IC50) values of KS-504a, KS-504b, KS-504d and...

2011
Juan F. Ramirez-Villegas Eric Lam-Espinosa David F. Ramirez-Moreno Paulo C. Calvo-Echeverry Wilfredo Agredo-Rodriguez

Statistical, spectral, multi-resolution and non-linear methods were applied to heart rate variability (HRV) series linked with classification schemes for the prognosis of cardiovascular risk. A total of 90 HRV records were analyzed: 45 from healthy subjects and 45 from cardiovascular risk patients. A total of 52 features from all the analysis methods were evaluated using standard two-sample Kol...

2014
Ashwini Kumar Srivastava

An essential problem in reliability analysis is to obtain information about the form of the population from which the sample is drawn. Goodness of fit test is employed on different real data set to determine how well the observed sample data "fits" on proposed model for reliability analysis. In this paper, we obtain the tables and graphs of critical values of Kolmogorov-Smirnov (KS) test and P-...

2002
Yi-Ting Chen

This paper proposes a new class of characteristic-function-based distribution tests for two-sample comparison, simple hypotheses, and conditional distribution assumptions of econometric models. The proposed tests are easy to compute and have χ2(2) as the asymptotic null distribution. Comparing to the Kolmogorov-Smirnov (KS) and Cramérvon Mises (CV) tests, the proposed test can flexibly account ...

2000
Scott W. Chambers Adrian L. Melott Christopher J. Miller

We have examined whether the major axes of rich galaxy clusters tend to point toward their nearest neighboring cluster. We have used the data of Ulmer, McMillan, and Kowalski, who used position angles based on X-ray morphology. We also studied a subset of this sample with updated positions and distances from the MX Northern Abell Cluster Survey (for rich clusters (R ≥ 1) with well known redshif...

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