René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"plt.hist density argument does not function as described.","articleBody":"### Bug report\r\n\r\n**Bug summary**\r\n\r\nplt.hist density argument does not function as described.\r\n\r\n**Code for reproduction**\r\n\r\n```python\r\nimport matplotlib.pyplot as plt\r\nimport numpy as np\r\nx = np.asarray([0,0,0,0,1,1,2,2,2,2,3,3,3,3,3,3,3], dtype=\"float\")\r\nn, bins, _ = plt.hist(x, density=1, bins=2)\r\nprint(n)\r\nprint(np.sum(n))\r\n```\r\n\r\n**Actual outcome**\r\n\r\n\u003c!--The output produced by the above code, which may be a screenshot, console output, etc.--\u003e\r\n\r\n```\r\n[0.23529412 0.43137255]\r\n0.6666666666666666\r\n```\r\n\r\n**Expected outcome**\r\n\r\n```python\r\nimport matplotlib.pyplot as plt\r\nimport numpy as np\r\nx = np.asarray([0,0,0,0,1,1,2,2,2,2,3,3,3,3,3,3,3], dtype=\"float\")\r\nn, bins, _ = plt.hist(x, density=1, bins=2)\r\nn /= np.sum(n)  # As advertised\r\nprint(n)\r\nprint(np.sum(n))\r\n```\r\n\r\n```\r\n[0.35294118 0.64705882]\r\n1.0\r\n```\r\n\r\n**Matplotlib version**\r\n\u003c!--Please specify your platform and versions of the relevant libraries you are using:--\u003e\r\n  * Operating system: OSX High Sierra\r\n  * Matplotlib version: 2.1.1\r\n  * Matplotlib backend: MacOSX\r\n  * Python version: 3.6.4\r\n  * Other libraries: numpy 1.14.0\r\n  * Installed via: pip3\r\n","author":{"url":"https://github.com/ryanpeach","@type":"Person","name":"ryanpeach"},"datePublished":"2018-02-08T15:44:45.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":45},"url":"https://github.com/10398/matplotlib/issues/10398"}