Abstract
Maximum likelihood estimators of the parameters of a $p$-dimensional multinormal population are derived in this paper which are applicable when sample selection and observation is restricted with respect to $x_1$ but otherwise unrestricted with respect to $x_2, \cdots, x_p$. Restrictions imposed may consist of truncation, censoring, or a selection which results in full observation of all sample specimens with respect to $x_1$, but eliminates certain sample specimens from subsequent observation with respect to $x_2, \cdots, x_p$.
Citation
A. Clifford Cohen Jr.. "Restriction and Selection in Multinormal Distributions." Ann. Math. Statist. 28 (3) 731 - 741, September, 1957. https://doi.org/10.1214/aoms/1177706885
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