在用Matlab繪制各種常用概率分布的密度函數(shù)時，都比較簡單，唯獨超幾何分布試了幾次都不成功，輸出結(jié)果總是 M3xi 0/.  
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        查看了一下幫助  help hygepdf r|sy_Sk/{  
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HYGEPDF Hypergeometric probability density function. {gq:sj>  
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    Y = HYGEPDF(X,M,K,N) returns the hypergeometric probability Vt 5XC~jK  
    density function at X with integer parameters M, K, and N. @x\gk5  
    Note: The density function is zero unless X is an integer. vcUM]m8k
 
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    The size of Y is the common size of the input arguments. A scalar input   YJ;a{)e  
    functions as a constant matrix of the same size as the other inputs.     A 5\"e^>  
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    See also hygecdf, hygeinv, hygernd, hygestat, pdf. "\P~Re"EH  
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    Reference page in Help browser sZ(Q4)r  
       doc hygepdf