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<正> Let X1, X2,… be a sequence of i. i. d. random variables, with common density function f（x）. The kernel estimation of f（x） is defined as:
INVARIANCE PRINCIPLE FOR THE ESTIMATION OF A DENSITY
【摘 要】
：
<正> Let X1, X2,… be a sequence of i. i. d. random variables, with common density function f（x）. The kernel estimation of f（x） is defined as:
【机 构】
：
HangzhouUniversity
【出 处】
：
科学通报：英文版
【发表日期】
：
1983年6期
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