什么是excess variance?它所在的段落:The data sets considered thus far have been ideal,in the sense that they are free from flux uncertainties.however,a light curve xi will have finite uncertainties due to measurement errors.these uncertaint

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什么是excessvariance?它所在的段落:Thedatasetsconsideredthusfarhavebeenideal,inthesensethattheyarefreefromflux

什么是excess variance?它所在的段落:The data sets considered thus far have been ideal,in the sense that they are free from flux uncertainties.however,a light curve xi will have finite uncertainties due to measurement errors.these uncertaint
什么是excess variance?
它所在的段落:
The data sets considered thus far have been ideal,in the sense that they are free from flux uncertainties.however,a light curve xi will have finite uncertainties due to measurement errors.these uncertainties on the individual flux measurements will contribute an additional variance.this leads to the use of ‘excess variance’ as an estimator of the intrinsic source variance.
大神顺便解释下这段话.

什么是excess variance?它所在的段落:The data sets considered thus far have been ideal,in the sense that they are free from flux uncertainties.however,a light curve xi will have finite uncertainties due to measurement errors.these uncertaint
excess variance意思是额外的方差
他的数据集被认为是到目前为止都是理想的,在这个意义上,他们是自由的通量的不确定性.然而,光变曲线西将有限的不确定性由于对个别通量测量的测量错误.这些不确定性将增加一个方差.这导致使用“多余的方差为内在源方差的估计.