Bug report

Bug summary

The documentation of pyplot.errorbar() specifies, that if one gives asymmetrical errors xerr/yerr, the positive one should be given first. In realization, the errors to the lower end have to be given first

Code for reproduction

# Paste your code here
import matplotlib.pyplot as plt
fig, ax = plt.subplots()
ax.errorbar([0, 1], [1, 2], xerr=[[1, 2], [5, 10]], yerr=[[1, 2], [5, 10]])
plt.show()
#

Actual outcome

the smaller errorbars appear to the left of the plot points

# If applicable, paste the console output here
#
#

Expected outcome

The documentation way suggests the smaller errorbars should appear to the right

Matplotlib version

• Operating system: RHEL6
• Matplotlib version: 2.1.0
• Matplotlib backend (print(matplotlib.get_backend())):
• Python version: 2.7.10
• Jupyter version (if applicable):
• Other libraries: