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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Polar plot error bars don't rotate with angle","articleBody":"In this example the errorbars do not align with the theta of bar. I posted this as a question at [stackoverflow](http://stackoverflow.com/questions/7224155/polar-plot-error-bars-dont-rotate-with-angle-in-matplotlib), and maybe the answer could be useful. Surely, this should not be default behavior though.\n\nExample non-working code:\n\n```\nfrom numpy import *\nfrom matplotlib import pyplot as py\n\n\nr=zeros([16])\nerr=zeros([16]) \nfor i in range(16):\n    r[i]=random.randint(400,600)\n    err[i]=random.randint(20,50)\ntheta=arange(0,2*pi,2*pi/16)\nwidth = pi*2/16\n\nfig = py.figure(figsize=(8,8))\nax = fig.add_axes([0.1, 0.1, 0.75, 0.79], polar=True)\n\nbars = ax.bar(theta+pi/16, r, width=width, bottom=0.0,yerr=err)\nax.set_ylim(0,700)\npy.show()\n```\n","author":{"url":"https://github.com/drwebb","@type":"Person","name":"drwebb"},"datePublished":"2011-08-29T09:02:28.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":20},"url":"https://github.com/441/matplotlib/issues/441"}