نتایج جستجو برای: zero inflated

تعداد نتایج: 153089  

Journal: :Computational Statistics & Data Analysis 2016
Kimberly F. Sellers Andrew Raim

Excess zeroes are often thought of as a cause of data over-dispersion (i.e. when the variance exceeds the mean); this claim is not entirely accurate. In actuality, excess zeroes reduce the mean of a dataset, thus inflating the dispersion index (i.e. the variance divided by the mean). While this results in an increased chance for data over-dispersion, the implication is not guaranteed. Thus, one...

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