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      "cell_type": "markdown",
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      "source": [
        "\n# Modifying the coordinate formatter\n\nModify the coordinate formatter to report the image \"z\" value of the nearest\npixel given x and y.  This functionality is built in by default; this example\njust showcases how to customize the `~.axes.Axes.format_coord` function.\n"
      ]
    },
    {
      "cell_type": "code",
      "execution_count": null,
      "metadata": {
        "collapsed": false
      },
      "outputs": [],
      "source": [
        "import matplotlib.pyplot as plt\nimport numpy as np\n\n# Fixing random state for reproducibility\nnp.random.seed(19680801)\n\n\nX = 10*np.random.rand(5, 3)\n\nfig, ax = plt.subplots()\nax.imshow(X)\n\n\ndef format_coord(x, y):\n    col = round(x)\n    row = round(y)\n    nrows, ncols = X.shape\n    if 0 <= col < ncols and 0 <= row < nrows:\n        z = X[row, col]\n        return f'x={x:1.4f}, y={y:1.4f}, z={z:1.4f}'\n    else:\n        return f'x={x:1.4f}, y={y:1.4f}'\n\n\nax.format_coord = format_coord\nplt.show()"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {},
      "source": [
        ".. admonition:: References\n\n   The use of the following functions, methods, classes and modules is shown\n   in this example:\n\n   - `matplotlib.axes.Axes.format_coord`\n   - `matplotlib.axes.Axes.imshow`\n\n"
      ]
    }
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