对证券市场包括股票市场中的一些经典方法有： 均值-方差分析法、APT理论、CAPM模型、B-S期权定价模型等。
Some of classical analytical methods about Security market, including stock market have Mean-Variance analytics, APT theory, CAPM model, B-S options pricing model, etc.
结果表明，造林密度对马尾松管胞形态总平均值影响不大，方差分析不显著；
The results show that the average value of tracheid form can not be affected by the planting density through variance analysis .
本文提出了一种单因子异方差模型，导出这种异方差分析方法，并给出了模型中均值与方差的估计。
This paper presents a single factor heteroscedastic model, deduce a method of this heteroscedastic analysis, and presents the estimation of mean and variance in this model.
应用推荐