public void CharDistribution()
{
var rng = DiscreteChar.UniformInRanges("bdgi");
var unif = DiscreteChar.Uniform();
var mix = new DiscreteChar();
mix.SetToSum(0.8, rng, 0.2, unif);
DistributionTests.DistributionTest(unif, mix, false);
DistributionTests.PointMassTest(mix, 'b');
DistributionTests.UniformTest(rng, 'b');
}