نتایج جستجو برای: omnibus test
تعداد نتایج: 814118 فیلتر نتایج به سال:
The fractional integrated process has been widely studied since the seminal work of Granger and Joyeus (1980). However, most of the tests for fractional integration are time-domain tests. This paper contributes to the ∗We would like to thank Jianqing Fan, N.H. Chan and Yin-Wong Cheung for helpful comments. We also thank Carrella Ernesto and Lumpkin Samuel Mcspadden for able research assistance....
This paper develops omnibus tests for comparing cause-speciic hazard rates and cumulative incidence functions at speciied covariate levels. Conndence bands for the diierence and the ratio of two conditional cumulative incidence functions are also constructed. The omnibus test is formulated in terms of a test process given by a weighted diierence of estimates of cumulative cause-speciic hazard r...
Based on an omnibus likelihood ratio test statistic for the equality of several variance-covariance matrices following the complex Wishart distribution with an associated p-value and a factorization of this test statistic, change analysis in a short sequence of multilook, polarimetric SAR data in the covariance matrix representation is carried out. The omnibus test statistic and its factorizati...
Based on an omnibus likelihood ratio test statistic for the equality of several variance-covariance matrices following the complex Wishart distribution and a factorization of this test statistic with associated p-values, change analysis in a time series of multilook, polarimetric SAR data in the covariance matrix representation is carried out. The omnibus test statistic and its factorization de...
In microarray data analysis, we are often required to combine several dependent partial test results. To overcome this, many suggestions have been made in previous literature; Tippett's test and Fisher's omnibus test are most popular. Both tests have known null distributions when the partial tests are independent. However, for dependent tests, their (even, asymptotic) null distributions are unk...
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