import matplotlib.pyplot as plt
import numpy as np
import seaborn as sns
from scipy import optimize
from bokeh import mpl
from bokeh.plotting import output_file, show
# Set the palette colors.
sns.set(palette="Set2")
# Build the sin wave
def sine_wave(n_x, obs_err_sd=1.5, tp_err_sd=.3):
x = np.linspace(0, (n_x - 1) / 2, n_x)
y = np.sin(x) + np.random.normal(0, obs_err_sd) + np.random.normal(0, tp_err_sd, n_x)
return y
sines = np.array([sine_wave(31) for _ in range(20)])
# Generate the Seaborn plot with "ci" bars.
ax = sns.tsplot(sines, err_style="ci_bars", interpolate=False)
xmin, xmax = ax.get_xlim()
x = np.linspace(xmin, xmax, sines.shape[1])
out, _ = optimize.leastsq(lambda p: sines.mean(0) - (np.sin(x / p[1]) + p[0]), (0, 2))
a, b = out
xx = np.linspace(xmin, xmax, 100)
plt.plot(xx, np.sin(xx / b) + a, c="#444444")
plt.title("Seaborn tsplot with CI in bokeh.")
output_file("sinerror.html", title="sinerror.py example")
show(mpl.to_bokeh())
