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来自维基百科,自由的百科全书
在機率論與數理統計領域,萊斯分佈(Rice distribution或Rician distribution)是一種連續機率分佈,以美國科學家史蒂芬·萊斯的名字命名,其機率密度函數為:
機率密度函數 Rice probability density functions for various v with σ=1. Rice probability density functions for various v with σ=0.25. | |||
累積分佈函數 Rice cumulative density functions for various v with σ=1. Rice cumulative density functions for various v with σ=0.25. | |||
母數 |
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值域 | |||
機率密度函數 | |||
期望值 | |||
變異數 | |||
偏度 | (complicated) | ||
峰度 | (complicated) |
For large values of the argument, the Laguerre polynomial becomes (See Abramowitz and Stegun §13.5.1 (頁面存檔備份,存於網際網路檔案館))
It is seen that as becomes large or becomes small the mean becomes and the variance becomes
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