查查underlying的中文意思吧，这个不是统计中的“专业术语”

潜在的分布,即总体分布

正好看到一个例子 Experimentally, a series of tests using different  bandwidths showed that a value of 350m best reflected the underlying distribution of
the data. ——出自《Defining and Delineating the Central Areas of Towns for Statistical Monitoring Using Continuous Surface Representations》

此外，潜在的概率分布(underlyingpropabilitydistribution).

同意楼上