René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"pyplot.savefig fails with ValueError: cannot convert float NaN to integer","articleBody":"I think this is happening because I am plotting a gaussian that is very narrow compared to the x range.  Still it seems failing here is bad behavior.\n\nhere is some code that reproduces the problem, taken from IPython notebook:\n\n``` python\n    %matplotlib inline\n    import matplotlib.pyplot as plt\n    from scipy.stats import norm as scipy_stats_norm\n    from math import sqrt\n\n    plt.clf()\n    fig, ax = plt.subplots()\n\n    max_x = 1100  # this fails\n    #max_x = 1000  # this works\n    x = np.linspace(-max_x, max_x, 300) \n\n    mean = -0.0938\n    stdev = sqrt(0.008812)\n    ax.plot(x, scipy_stats_norm.pdf(x, loc=mean, scale=stdev), color='red', linewidth=2)\n\n    ax.set_yticklabels([])\n    ax.set_xlim(-max_x, max_x)\n\n    filename = '/tmp/fail.png'\n    plt.savefig(filename, bbox_inches='tight')\n    plt.show()\n```\n\nHere's the result:\n\n``` python\n  File \"/opt/datasci-python/lib/python2.7/site-packages/matplotlib/pyplot.py\", line 561, in savefig\n    return fig.savefig(*args, **kwargs)\n  File \"/opt/datasci-python/lib/python2.7/site-packages/matplotlib/figure.py\", line 1421, in savefig\n    self.canvas.print_figure(*args, **kwargs)\n  File \"/opt/datasci-python/lib/python2.7/site-packages/matplotlib/backend_bases.py\", line 2167, in print_figure\n    **kwargs)\n  File \"/opt/datasci-python/lib/python2.7/site-packages/matplotlib/backends/backend_agg.py\", line 505, in print_png\n    FigureCanvasAgg.draw(self)\n  File \"/opt/datasci-python/lib/python2.7/site-packages/matplotlib/backends/backend_agg.py\", line 451, in draw\n    self.figure.draw(self.renderer)\n  File \"/opt/datasci-python/lib/python2.7/site-packages/matplotlib/artist.py\", line 55, in draw_wrapper\n    draw(artist, renderer, *args, **kwargs)\n  File \"/opt/datasci-python/lib/python2.7/site-packages/matplotlib/figure.py\", line 1034, in draw\n    func(*args)\n  File \"/opt/datasci-python/lib/python2.7/site-packages/matplotlib/artist.py\", line 55, in draw_wrapper\n    draw(artist, renderer, *args, **kwargs)\n  File \"/opt/datasci-python/lib/python2.7/site-packages/matplotlib/axes.py\", line 2086, in draw\n    a.draw(renderer)\n  File \"/opt/datasci-python/lib/python2.7/site-packages/matplotlib/artist.py\", line 55, in draw_wrapper\n    draw(artist, renderer, *args, **kwargs)\n  File \"/opt/datasci-python/lib/python2.7/site-packages/matplotlib/axis.py\", line 1096, in draw\n    tick.draw(renderer)\n  File \"/opt/datasci-python/lib/python2.7/site-packages/matplotlib/artist.py\", line 55, in draw_wrapper\n    draw(artist, renderer, *args, **kwargs)\n  File \"/opt/datasci-python/lib/python2.7/site-packages/matplotlib/axis.py\", line 241, in draw\n    self.label1.draw(renderer)\n  File \"/opt/datasci-python/lib/python2.7/site-packages/matplotlib/artist.py\", line 55, in draw_wrapper\n    draw(artist, renderer, *args, **kwargs)\n  File \"/opt/datasci-python/lib/python2.7/site-packages/matplotlib/text.py\", line 598, in draw\n    ismath=ismath, mtext=self)\n  File \"/opt/datasci-python/lib/python2.7/site-packages/matplotlib/backends/backend_agg.py\", line 188, in draw_text\n    font.get_image(), np.round(x - xd), np.round(y + yd) + 1, angle, gc)\nValueError: cannot convert float NaN to integer\n```\n","author":{"url":"https://github.com/jessehersch","@type":"Person","name":"jessehersch"},"datePublished":"2015-04-07T23:49:29.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":32},"url":"https://github.com/4318/matplotlib/issues/4318"}