def try_sawtooth(period, noise=0.0, reps=1):
eps = 3 # why is sawtooth so flaky?
npass = 0
s = sequences.sawtooth(1.0, period, CYCLES, period / 3)
for _ in range(reps):
ns = sequences.add_noise(sequences.mix(s, 0, noise), noise)
ns = ns - ns.mean()
p = fit_period(ns)
if period - eps <= p and p <= period + eps:
npass += 1
else:
print "saw {0} got {1}".format(period, p)
print "try_sawtooth noise {0} period {1} -> {2}%".format(
noise, period, (100 * npass) / reps)
return npass
def try_sawtooth(period, noise=0.0, reps=1):
eps = 3 # why is sawtooth so flaky?
npass = 0
s = sequences.sawtooth(1.0, period, CYCLES, period // 3)
for _ in range(reps):
ns = sequences.add_noise(sequences.mix(s, 0, noise), noise)
ns = ns - ns.mean()
p = fit_period(ns)
if period - eps <= p and p <= period + eps:
npass += 1
else:
print("saw {0} got {1}".format(period, p))
print("try_sawtooth noise {0} period {1} -> {2}%".format(
noise, period, (100 * npass) / reps))
return npass
def test_sawtooth():
for period in PERIODS:
s = sequences.sawtooth(period / 5, period, CYCLES, period / 3)
p = periodogram_peaks(s, thresh=1.0)
assert len(p) == 1 and p[0][2] <= period and p[0][3] >= period
def test_sawtooth():
for period in PERIODS:
s = sequences.sawtooth(period // 5, period, CYCLES, period // 3)
p = periodogram_peaks(s, thresh=1.0)
assert len(p) == 1 and p[0][2] <= period and p[0][3] >= period