Methods Non-parameter kernel density estimation method was adopted. 方法采用非參數核密度估計推斷方法。
This gives you the best apples-to-apples comparison, but it involves a lot of estimation, extrapolation, and a dose of outright guesswork. 這是最為等同意義上的比較,但涉及很多估計,推斷,和臆測的成分。