By using well known properties of elliptical distributions we show that the relation between Kendall's tau and the linear correlation coefficient for bivariate normal distributions holds more generally (subject to only slight modifications) for the class of elliptical distributions.

In this paper two nonparametric tests for monotonic trend detection are compared with respect to their power and accuracy. The importance of comparing powers at equal empirical signiicance levels rather than nominal levels, is stressed. Therefore, an appropriate graphical method is presented. The eeect of the sampling frequency is also assessed using a trajectory representation that visualizes ...

This paper presents user-friendly SAS macro and SAS programs to check the three parts of a time series: Trend, Cyclical patterns, and Stationarity. The SAS macro KENDALL performs the trend analysis. Seasonal Kendall Trend analysis, including summery statistics; overall Tau and the P-value of the test for trend; monthly Tau values, the corresponding P-values for each month; the Seasonal Kendall ...

the aim of this research was to study the relationship between locus of control (loc) and general health (gh) in athletes and non – athlete male students in tehran university. for this purpose, 206 athlete and non – athlete university stundents (age: 18 – 25 years old) were selected randomly. the research method used in this study was ex post facto – descriptive. ratter's locus of control ...

The disadvantages of apriori algorithm are firstly discussed. Then, a new measure of kendall-τ is proposed and treated as an interest threshold. Furthermore, an improved Apriori algorithm called K -apriori is proposed based on kendall-τ correlation coefficient. It not only can accurately find the relations between different products in transaction databases and reduce the useless rules but also...

Nonparametric correlation measures at the Kendall and Spearman correlation are widely used in the behavioral sciences. These measures are often said to be robust, in the sense of being resistant to outlying observations. In this note we formally study their robustness by means of their influence functions. Since robustness of an estimator often comes at the price of a loss in precision, we comp...

The classic Johnson–Kendall–Roberts (JKR) contact theory was developed for frictionless adhesive between two isotropic elastic spheres. advantage of the classical JKR formalism is use principle superposition solutions to non-adhesive axisymmetric problems. In recent years, has been extended other cases, including problems an arbitrary-shaped blunt indenter and a linear half-space obeying rotati...