Created
April 8, 2014 13:19
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Pandas plotting with errorbars
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# -*- coding: utf-8 -*- | |
import string | |
from pandas import DataFrame, Series | |
import datetime | |
import numpy as np | |
from numpy.random import randn, rand | |
import pandas.tools.plotting as plotting | |
from pandas.compat import u, string_types | |
from matplotlib.pylab import close | |
import matplotlib.pyplot as plt | |
# errors | |
err_df = DataFrame(randn(6, 3) / 3, index=range(6), columns=['x', 'y', 'z']) | |
err_dict = {'x': randn(6) / 3, 'y': randn(6) / 3, 'z': randn(6) / 3} | |
err_s = Series(randn(6) / 3, index=range(6)) | |
err_str = 'z' | |
err_list = randn(6) / 3 | |
err_other = 0.2 | |
errs = [err_df, err_dict, err_s, err_list, err_other] | |
import pandas.util.testing as tm | |
df = DataFrame(rand(6, 3), index=range(6), columns=['x', 'y', 'z']) | |
s = Series(rand(6), index=range(6), name='x') | |
fig, axes = plt.subplots(1, 4, figsize=(14, 4)) | |
df.plot(kind='scatter', x='x', y='y', ax=axes[0], title='no errorbar') | |
df.plot(kind='scatter', x='x', y='y', xerr=err_df, ax=axes[1], title='xerr') | |
df.plot(kind='scatter', x='x', y='y', yerr=err_df, ax=axes[2], title='yerr') | |
df.plot(kind='scatter', x='x', y='y', xerr=err_df, yerr=err_df, ax=axes[3], title='both') | |
plt.show() | |
def plot(df, s, errs): | |
fig, axes = plt.subplots(4, 6, figsize=(14, 8)) | |
plt.subplots_adjust(top=0.97, bottom=0.05, left=0.15, right=0.97, hspace=0.5) | |
for i, e in enumerate(errs): | |
df.plot(kind='line', ax=axes[0, i], legend=False, title=type(e), xerr=e, yerr=e) | |
df.plot(kind='bar', ax=axes[1, i], legend=False, title=type(e), xerr=e, yerr=e) | |
s.plot(kind='line', ax=axes[2, i], legend=False, title=type(e), xerr=e, yerr=e) | |
s.plot(kind='bar', ax=axes[3, i], legend=False, title=type(e), xerr=e, yerr=e) | |
df.plot(kind='line', ax=axes[0, 5], legend=False, title='str', yerr=err_str) | |
df.plot(kind='bar', ax=axes[1, 5], legend=False, title='str', yerr=err_str) | |
plt.show() | |
plot(df, s, errs) | |
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Example for
pandas-dev/pandas#6834