def test_cdf_coal_cond_counts(self): # test coalescent pdf when conditioned on future lineage counts outdir = 'test/tmp/test_coal/Coal_test_cdf_coal_cond_counts/' make_clean_dir(outdir) a = 5 for b in xrange(2, a): t = 500 n = 1000 p = Gnuplot() p.enableOutput(False) p.plotfunc(lambda x: coal.cdf_coal_cond_counts( x, a, b, t, n), 0, t, 10) # draw single coal samples using rejection sampling s = [] for i in xrange(1000): while True: times = coal.sample_coal_times(a, n) if times[a-b-1] < t and (b == 1 or times[a-b] > t): break s.append(times[0]) x2, y2 = stats.cdf(s) p.plot(x2, y2, style='lines') p.enableOutput(True) p.save(outdir + 'plot-%d.png' % b) eq_sample_pdf( x2, lambda x: coal.prob_coal_cond_counts(x, a, b, t, n), 40)
def test_prob_coal2(self): outdir = 'test/tmp/test_coal/Coal_test_prob_coal2/' make_clean_dir(outdir) k = 2 n = 1000 p = Gnuplot() p.enableOutput(False) p.plotfunc(lambda t: coal.prob_coal(t, k, n), 0, 4000, 10, ymin=0) # draw single coal samples x = [coal.sample_coal(k, n) for i in xrange(200)] plotdistrib(x, 40, plot=p) p.enableOutput(True) p.save(outdir + 'plot.png') eq_sample_pdf(x, lambda t: coal.prob_coal(t, k, n), 40)