Biometrika

最新文章

• SOME EXACT TESTS FOR COMPARING SURVIVAL CURVES IN THE PRESENCE OF UNEQUAL RIGHT CENSORING AI翻译
  作者：JENNRICH, RI
• CORRECTION AI翻译
  作者：SIRVANCI, M
• A CORRELATION GOODNESS-OF-FIT TEST FOR RANDOMLY CENSORED-DATA AI翻译
  作者：CHEN, CH
  摘要：For testing a composite goodness-of-fit hypothesis with randomly censored data, a correlation statistic which is an analog of the Shapiro-Francia statistic is presented. The test for exponentiality, in case of light censoring, is asymptotically robust against departures from the Koziol-Green model of random censorship. The power of the test is compared with the total-time-on-test procedure and the new-better-than-used test using Monte Carlo simulation. As an example, the test is applied to som...
• MINIMIZING THE MAXIMUM VARIANCE OF THE DIFFERENCE BETWEEN 2 ESTIMATED RESPONSES AI翻译
  作者：HUDA, S; MUKERJEE, R
• CORRECTION AI翻译
  作者：WOOLSON, RF
• HETEROSCEDASTIC ERRORS IN A LINEAR FUNCTIONAL-RELATIONSHIP AI翻译
  作者：CHAN, NN; MAK, TK
  作者单位：University of Hong Kong
• THE ASYMPTOTIC EFFICIENCY OF CONDITIONAL LIKELIHOOD METHODS AI翻译
  作者：LIANG, KY
  摘要：The efficiency of the conditional likelihood method for inference in models which include nuisance parameters is examined. A new concept of ancillarity, asymptotic weak ancillarity, is introduced. It is shown that the conditional maximum likelihood estimator and the conditional score test of .theta., the parameter of interest, are asymptotically equivalent to their unconditional counterparts, and hence are asymptotically efficient, provided that the conditioning statistic is asymptotically wea...
• LIFE TABLE METHODS FOR HETEROGENEOUS POPULATIONS - DISTRIBUTIONS DESCRIBING THE HETEROGENEITY AI翻译
  作者：HOUGAARD, P
  摘要：Taking account of heterogeneity between the individuals in population based mortality studies is important. A systematic way of describing heterogeneity is by an unobserved quantity called frailty, entering the hazard multiplicatively. Until now most studies have used a gamma distributed frailty, which is mathematically convenient; for example, the distribution among survivors is also gamma. Several other distributions have equally simple properties, the main example being the inverse Gaussian...
• LOCAL SUFFICIENCY AI翻译
  作者：MCCULLAGH, P
• ESTIMATING THE COMMON-MEAN DIRECTION OF SEVERAL CIRCULAR OR SPHERICAL DISTRIBUTIONS WITH DIFFERING DISPERSIONS AI翻译
  作者：FISHER, NI; LEWIS, T
  作者单位：Open University - UK
  摘要：This paper considers the problem of forming a pooled estimate of the common mean direction of several circular or spherical populations with possibly differing dispersions, based on samples from each population. Methods for obtaining approximate confidence cones for the mean direction of a single circular or spherical population are developed, than applied to several examples [including paleo climatology].