René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"BUG: incorrect error bar colors when NaN values are present","articleBody":"### Bug report\r\n\r\n**Bug summary**\r\n\r\nWhen using variable colors for error bars, the colors are incorrect/shifted if NaN values are present.\r\n\r\n**Code for reproduction**\r\n\r\n```python\r\nimport numpy as np\r\nimport matplotlib.pyplot as plt\r\n\r\nx = [1, np.nan, 3, 4, 5]\r\ncolors = ['red', 'green', 'blue', 'purple', 'orange']\r\n\r\nfig = plt.figure()\r\nax = fig.add_subplot(1, 1, 1)\r\nax.scatter(x, x, c=colors, s=100)\r\nax.errorbar(x, x, xerr=0.2, yerr=0.2, ecolor=colors, fmt='none')\r\nfig.savefig('errorbar_colors.png')\r\n```\r\n\r\n**Actual outcome**\r\n\r\n![errorbar_colors](https://user-images.githubusercontent.com/314716/55234603-6dbdd080-5223-11e9-8fe1-532fd20a1127.png)\r\n\r\n**Expected outcome**\r\n\r\n![errorbar_colors](https://user-images.githubusercontent.com/314716/55234635-7ca48300-5223-11e9-8e10-eb95b03416b4.png)\r\n\r\n**Matplotlib version**\r\n\r\n  * Operating system: MacOS X 10.14.2\r\n  * Matplotlib version: 3.0.3 (from pip)\r\n  * Matplotlib backend: Agg\r\n  * Python version: 3.7.1\r\n\r\n","author":{"url":"https://github.com/astrofrog","@type":"Person","name":"astrofrog"},"datePublished":"2019-03-29T13:07:49.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":1},"url":"https://github.com/13799/matplotlib/issues/13799"}