A Method of Estimation of Missing Values in Multivariate Data Suitable for Use with an Electronic Computer
适于计算机实现的多元数据缺失值估计方法
SUMMARY Estimation of statistical parameters from multivariate data results in wasted information, if units with incomplete data are rejected entirely, and perhaps in inconsistencies in the variance–covariance matrix if the variances and correlation coefficients are estimated from all available data on individual variates and pairs of variates respectively. An alternative is to estimate the missing values by regression techniques and to calculate a revised…