Best Linaer Unbiased Estimate Method for Incomplete Data

There are lots of incomplete data in the real engineering world. The joint probability density function of rank statistics for incomplete data is presented, and the formulas of means, variances and covariances of order statistics for incomplete data are established in this paper. Then the best linear unbiased estimate method for incomplete data is presented. The incomplete information among test data can fully be exploited and applied by the method, and the precision is improved in the statistical analysis of incomplete data.