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单词 Empirical distribution function
释义

Empirical distribution function

英语百科

Empirical distribution function

The blue line shows an empirical distribution function. The black bars represent the samples corresponding to the empirical distribution function and the gray curve is the true cumulative distribution function.

In statistics, the empirical distribution function is the distribution function associated with the empirical measure of the sample. This cumulative distribution function is a step function that jumps up by 1/n at each of the n data points. The empirical distribution function estimates the cumulative distribution function underlying of the points in the sample and converges with probability 1 according to the Glivenko–Cantelli theorem. A number of results exist to quantify the rate of convergence of the empirical distribution function to the underlying cumulative distribution function.

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