Plotting shaded uncertainty region in line plot in matplotlib when data has NaNs

Question

I would like a plot which looks like this:

I am trying to do this with matplotlib:

fig, ax = plt.subplots()

with sns.axes_style(\"darkgrid\"):
             


        

Answer 1

Ok. So one of the problem was that the dtype of my data was object and not float and this caused fill_between to fail when it looked to see if the numbers were finite. I finally managed to do it by (a) converting to float and then (b) to solve the problem of the matching colours for uncertainty and line, to use a colour palette. So I have:

import seaborn as sns
import numpy as np
import matplotlib.pyplot as plt
import pandas as pd
fig, ax = plt.subplots()
clrs = sns.color_palette("husl", 5)
with sns.axes_style("darkgrid"):
    epochs = list(range(101))
    for i in range(5):
        meanst = np.array(means.ix[i].values[3:-1], dtype=np.float64)
        sdt = np.array(stds.ix[i].values[3:-1], dtype=np.float64)
        ax.plot(epochs, meanst, label=means.ix[i]["label"], c=clrs[i])
        ax.fill_between(epochs, meanst-sdt, meanst+sdt ,alpha=0.3, facecolor=clrs[i])
    ax.legend()
    ax.set_yscale('log')

which gave me the following result: