(optional) random number generator to use; if not specified, defaults to rndGen
forward range or list of individual values whose elements correspond to the probabilities with which to choose the corresponding index value
Random variate drawn from the index values [0, ... proportions.length - 1], with the probability of getting an individual index value i being proportional to proportions[i].
auto x = dice(0.5, 0.5); // x is 0 or 1 in equal proportions auto y = dice(50, 50); // y is 0 or 1 in equal proportions auto z = dice(70, 20, 10); // z is 0 70% of the time, 1 20% of the time, // and 2 10% of the time
auto rnd = MinstdRand0(42); auto z = rnd.dice(70, 20, 10); assert(z == 0); z = rnd.dice(30, 20, 40, 10); assert(z == 2);
Rolls a dice with relative probabilities stored in proportions. Returns the index in proportions that was chosen.