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词汇 Gamma distribution
分类 英语词汇 英语翻译词典
释义

Gamma distribution

中文百科

伽玛分布

伽玛分布是统计学的一种连续机率函数。伽玛分布中的参数α，称为形状参数，β称为尺度参数。

假设随机变量X为 等到第α件事发生所需之等候时间

英语百科

Gamma distribution 伽玛分布

Illustration of the gamma PDF for parameter values over k and x with θ set to 1, 2, 3, 4, 5 and 6. One can see each θ layer by itself here as well as by k and x. .
Illustration of the Kullback–Leibler (KL) divergence for two gamma PDFs. Here β = β0 + 1 which are set to 1, 2, 3, 4, 5 and 6. The typical asymmetry for the KL divergence is clearly visible.

In probability theory and statistics, the gamma distribution is a two-parameter family of continuous probability distributions. The common exponential distribution and chi-squared distribution are special cases of the gamma distribution. There are three different parametrizations in common use:
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