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      "cell_type": "code",
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      "source": [
        "%matplotlib inline"
      ]
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      "cell_type": "markdown",
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      "source": [
        "# Fill features\n\nDemo of the fill function with a few features.\n\nIn addition to the basic fill plot, this demo shows a few optional features:\n\n* Multiple curves with a single command.\n* Setting the fill color.\n* Setting the opacity (alpha value).\n"
      ]
    },
    {
      "cell_type": "code",
      "execution_count": null,
      "metadata": {
        "collapsed": false
      },
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      "source": [
        "import numpy as np\nimport matplotlib.pyplot as plt\n\nplt.figure()\nx = np.linspace(0, 2 * np.pi, 100)\ny1 = np.sin(x)\ny2 = np.sin(3 * x)\nplt.fill(x, y1, \"b\", x, y2, \"r\", alpha=0.3)\nplt.show()"
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