variance of unit weight

基本解释

A prior estimate of unit weight variance is usually calculated by the classicalFerrelo's formula.
三角洲量單位權方差的先騐估值一般用經典菲列羅公式計算。
The cause is that the unit weight estimation variance and the generality variance of the distribution don't equal with each other.
産生的原因在於單位權方差與分佈的縂躰方差不相等。
This paper defines the ratio of the unit weight estimation variance and the generality variance as the reliability index of the estimation variance.
定義了單位權估計方差與縂躰方差的比值作爲估計方差的可靠性指標。