Best linear unbiased estimate method for incomplete interval censored data

The probability density function and joint probability density function of rank statistics for incomplete interval censored data are established,including the formulas of mean ranks,median ranks and percent ranks of rank statistics;furthermore,the means,variances and covariances of statistics for incomplete interval censored data are given in the paper.According to this,the best linear unbiased estimate method of location-scale distribution for incomplete interval censored data is presented,the confidence limits of percentiles for the incomplete interval censored data are obtained,and extreme value distribution,two-parameter Weibull distribution,normal distribution are discussed in detail.