Changes in lemon/random.h [92:5d4decd1b870:68:a315a588a20d] in lemon-1.0

File:

• lemon/random.h (modified) (1 diff)

lemon/random.h

@@ -804 +804 @@
     }  
       
-    /// Poisson distribution
-
-    /// This function generates a Poisson distribution random number with
-    /// parameter \c lambda.
-    /// 
-    /// The probability mass function of this distribusion is
-    /// \f[ \frac{e^{-\lambda}\lambda^k}{k!} \f]
-    /// \note The algorithm is taken from the book of Donald E. Knuth titled
-    /// ''Seminumerical Algorithms'' (1969). Its running time is linear in the
-    /// return value.
-    
-    int poisson(double lambda)
-    {
-      const double l = std::exp(-lambda);
-      int k=0;
-      double p = 1.0;
-      do {
-        k++;
-        p*=real<double>();
-      } while (p>=l);
-      return k-1;
-    }  
-      
     ///@}