variance n. 1.变化,变动,变更;变度,变量;【统计】(平)方(偏)差。 2.(意见等的)相异;不和,冲突,争论。 3.【法律】诉状和供词的不符。 at variance with 和…不和;和…不符 (at variance with the facts 不符事实。His conduct is at variance with his words. 他言行不符)。 set at variance 使不睦,离间。
Firstly, several methods are used to test if there is heteroscedasticity in the data . then some variance stabilizing transformation methods are applied to the data . finally, it is pointed out that the least squares fitting may be used to the transformed data 先用几种方法对数据是否具有异方差性进行检验,然后选择适当的方法进行变换,最后指出,可以通过对新模型作最小二乘拟合等方法,观察变换后的模型其数据的拟合程度,以确定模型的优劣。