{
 "cells": [
  {
   "attachments": {},
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# vega-extension"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "from IPython.display import display\n",
    "import pandas as pd\n",
    "\n",
    "def Vega(spec):\n",
    "    bundle = {}\n",
    "    bundle['application/vnd.vega.v5+json'] = spec\n",
    "    display(bundle, raw=True)\n",
    "\n",
    "def VegaLite(spec):\n",
    "    bundle = {}\n",
    "    bundle['application/vnd.vegalite.v4+json'] = spec\n",
    "    display(bundle, raw=True)"
   ]
  },
  {
   "attachments": {},
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Vega(spec: dict)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {
    "collapsed": true
   },
   "outputs": [
    {
     "data": {
      "application/vnd.vega.v5+json": {
       "$schema": "https://vega.github.io/schema/vega/v5.0.json",
       "axes": [
        {
         "orient": "bottom",
         "scale": "xscale"
        },
        {
         "orient": "left",
         "scale": "yscale"
        }
       ],
       "data": [
        {
         "name": "table",
         "values": [
          {
           "amount": 28,
           "category": "A"
          },
          {
           "amount": 55,
           "category": "B"
          },
          {
           "amount": 43,
           "category": "C"
          },
          {
           "amount": 91,
           "category": "D"
          },
          {
           "amount": 81,
           "category": "E"
          },
          {
           "amount": 53,
           "category": "F"
          },
          {
           "amount": 19,
           "category": "G"
          },
          {
           "amount": 87,
           "category": "H"
          }
         ]
        }
       ],
       "height": 200,
       "marks": [
        {
         "encode": {
          "enter": {
           "width": {
            "band": 1,
            "scale": "xscale"
           },
           "x": {
            "field": "category",
            "scale": "xscale"
           },
           "y": {
            "field": "amount",
            "scale": "yscale"
           },
           "y2": {
            "scale": "yscale",
            "value": 0
           }
          },
          "hover": {
           "fill": {
            "value": "red"
           }
          },
          "update": {
           "fill": {
            "value": "steelblue"
           }
          }
         },
         "from": {
          "data": "table"
         },
         "type": "rect"
        },
        {
         "encode": {
          "enter": {
           "align": {
            "value": "center"
           },
           "baseline": {
            "value": "bottom"
           },
           "fill": {
            "value": "#333"
           }
          },
          "update": {
           "fillOpacity": [
            {
             "test": "datum === tooltip",
             "value": 0
            },
            {
             "value": 1
            }
           ],
           "text": {
            "signal": "tooltip.amount"
           },
           "x": {
            "band": 0.5,
            "scale": "xscale",
            "signal": "tooltip.category"
           },
           "y": {
            "offset": -2,
            "scale": "yscale",
            "signal": "tooltip.amount"
           }
          }
         },
         "type": "text"
        }
       ],
       "padding": 5,
       "scales": [
        {
         "domain": {
          "data": "table",
          "field": "category"
         },
         "name": "xscale",
         "padding": 0.05,
         "range": "width",
         "round": true,
         "type": "band"
        },
        {
         "domain": {
          "data": "table",
          "field": "amount"
         },
         "name": "yscale",
         "nice": true,
         "range": "height"
        }
       ],
       "signals": [
        {
         "name": "tooltip",
         "on": [
          {
           "events": "rect:mouseover",
           "update": "datum"
          },
          {
           "events": "rect:mouseout",
           "update": "{}"
          }
         ],
         "value": {}
        }
       ],
       "width": 400
      },
      "image/png": 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RJGaxpPK2k5jl5RtrXfUQSypvu9g4VBWzDwAXBxdM1C4FRsCucHCn2bVV23rgkMQsb7BTWY9NmlTj5bTj4ZuofMiZIcW2VQ/FjJpoERuHKmJmp0q/EXgf8DXgSuAW4JnAdmAfYHZti3GzrdDG4/HWyWSybb7jo9GoyvhN8Ks8hocbUGXnO9TRQxzkQ7sJFXsTbXeWcaN7yKUiT6uKiT0Acncwfh7wYuBLwMGwIjst/Ha2BjiilVlRGLpxXcXbrTh4uAF58KEbWVFvFkOIQxUxOxO4DVgOfAe4Arg9bCduBNaFa7uBVcBxiVm9RGyqt8SsKdKLj6PfzLoVh27Mpt4sJGYL83s18I5w+bPAc8IKbCewIfz31cD+hUzoAZB6yZmjt8QsB9XyNiVm5Znl6KF6yEG1vM3YOFRZmU1nczpg24l3zpveUuBY+FuzBWcuMSsf1Nw9YpMm9zxS2PfwTVQ+pMiE6jZUD9XZpewZG4c6YlZrvhKzWviydI5NmiyDJzYqIUgMtKQ5T6vLkq53srmHeigCKzErIlTy+hCSpiSSVpp7iIN8aCV1fjKovty1y386emwcJGaJ4+XhBpQYSSvmPMRBPrSSOhKzdrGfMLrErKWAeLgBtYQu6bAe4iAfkqZEaWOxN9HShlvo4CGXirBpZVZEqOT1ISRNSSStNPcQB/nQSupoZdYudq3MusLfww2oKyzrzMNDHORDnQyo31crs/oMU1iIjYNWZiloz7Hh4QaUGEkr5jzEQT60kjpambWLXSuzrvD3cAPqCss68/AQB/lQJwPq941dEdQfKb8FD7lUREkrsyJCJa8PIWlKImmluYc4yIdWUkcrs3axa2XWFf66AbUbCU9/rKtc6kYutTuLNKN7yKUiElqZFREqed1D0siHkkFP3FyCnBhoRXPaZqwILnG32DjUFTM72+wh4a355oL9+7LwXsbDi/mk11kljngCc7qJJoCYwITikABiAhOxN9EEQ2U34eELahGkumJmh2/aadKPBe4H7AnnmK0FdoQDOmfOQWJWFJrmr+sm2jzzWSMqDt2KQzdmU28WErPF+T0VuB7YBTwXeAGwEtgCLLETpoEVwNFZZiRm9ZIzR2/dRHNQLW9TcSjPLEcPrcxyUC1vMzYOVVdmZwche34418wO5PyjIGx7AbN7bVi1HZKYlQ9gGz10E22D+oljKg7dikM3ZlNvFlqZzeZnv4vZiuylwD3APwKPD/+/HdgXxOxqwLYhD4zH462TyWTbfHOj0aiqmNaLbMbeHpJGPmRMkAjTErMISA00iV0RNDCV2kN4qOkiCFXE5Fzg5nCKtP1WZp8PAh8PW4u2IrNDO28E1oQTqE+Yh7YZi0LT/HXdRJtnPmtExaFbcejGbOrNQmI2m9+pwJnAD4HHAO8Bzgdsq3Fj+P/lwG5gFXBc24z1ErGp3rqJNkV68XEUh27FoRuzqTcLiVkxv0cB7waeBkyAncCG0G11WL3NtKKVWTHcplvoJto08dnjKQ7dikM3ZlNvFhKzavyWAsfC35otaEFiVg1uzl66ieakG29bcYhnlbOlfjPLSTfedmwcqvxmFj+LRVpKzJJgTGpEN9GkOCsbUxwqo0vaMfYmmnTQTMa0MssE1sxKzDLCrWhaN9GK4BJ3UxwSA61oTmJWEVzibrFx0MosMXgP34DkQ+KkKGlOYlYSWKbmsTfRTMMnNeuhpouASMyKCJW87iFp5EPJoCduLjFLDLSiOYlZRXCJu8XGQWKWGLyEIDHQkuYkBCWBZWruKQ6ZEDVq1sN9qQiYxKyIUMnrHpJGPpQMeuLmnoTAQy4lDm8r5oYQB4lZ4tTykDTyIXFSlDQnMSsJLFPz2O2tTMMnNeuhpouASMyKCJW87iFp5EPJoCduLjFLDLSiOYlZRXCJu8XGQWKWGLyEIDHQkuYkBCWBZWruKQ6ZEDVq1sN9qQiYxKyIUMnrHpJGPpQMeuLmnoTAQy4lDm8r5oYQB4lZ4tTykDTyIXFSlDQnMSsJLFPz2O2tTMMnNeuhpouA1BGzc4D7AbeFc81sLDvrbFl4L+PhxQbXG0CKQtP8dd1Em2c+a0TFoVtx6MZs6s1CYjabnwmgHbr5XOAzwCXAE4E7gT3hHLO1wA7ADuic+ZGY1UvOHL11E81BtbxNxaE8sxw9tDLLQbW8zdg4VFmZLQE+D9gRL3bS9JuCiD0UWAlsAazNAWAFcHTW9CVm5YOau4duorkJx9lXHOI45W4VexPNPY8U9rUyW5yiHdD5POC9gB3G+XJgF7AXMJG0E6fXA4ckZinSMb8N3UTzM44ZQXGIoZS/jcQsP+OYEWLjUGVlNh3/bOBVQcReDFwObAf2BTGzLUbbjjwwHo+3TiaTbfMnPhqN6owfw6HxNh6+AcmHxtPmXgNKzNrlPx099ibajdkuPgsPNV3EuYqYnAU8BfhwMP4s4PHAd4CDYUV2WvjtbA1wRCuzojB047puoopDKgKecikVkzbtSMxm07enGG8Iv4+ZUL0WuA9wK7ARWBe2HXcDq4DjErM20zh+bE83IA/FKx/iczdHS63MclAtbzM2DlVWZtOnGe3BD/vYgx62UrNH8XcCG8J/twdE9i80dT0AUj6ouXtIzHITjrOvOMRxyt0q9iaaex4p7Hv4YlTEoYqYTW2eEf6uzB7Jn/tZChwLf2u24PizxMwDcPlQlHJ5r0sI8vKNte4pDrE+d7mdh/tSEd86YlZke9HrErNa+LJ09nQD8lC88iFLmkcb1cosGlXWhrFxkJglCoOEIBHImmYUh5oAE3X3FIdESFo14+GLURFAiVkRocjrnorXQ+LLh8jEzdTMUz1kQtSoWQ/1UARMYlZEKPK6p+L1kPjyITJxMzXzVA+ZEDVq1kM9FAGTmBURirzuqXg9JL58iEzcTM081UMmRI2a9VAPRcAkZkWEIq97Kl4PiS8fIhM3UzNP9ZAJUaNmPdRDETCJWRGhyOueitdD4suHyMTN1MxTPWRC1KhZD/VQBExiVkQo8rqn4vWQ+PIhMnEzNfNUD5kQNWrWQz0UAZOYFRGKvO6peD0kvnyITNxMzTzVQyZEjZr1UA9FwCRmRYQir3sqXg+JLx8iEzdTM0/1kAlRo2Y91EMRMIlZEaHI656K10Piy4fIxM3UzFM9ZELUqFkP9VAErI6Y2XlmDwRuB74fBjoZWBbey2gvHl7wo9dZFYWm+euebkAeilc+NF8Dc0eMfY1Su7OMG91DLhV5WlXMLgbeHt6SPwKeBHwF2BPOMVsL7ADsgM6ZH4lZUWiavy4xa575rBEVh27FoRuzqTcLidlsfkvCyutBgL0x/wLAxO36cMbZFsDa2NEwK4Cjs8xIzOolZ47euonmoFrepuJQnlmOHlqZ5aBa3mZsHKquzOyYlzsA638VcBvwYGAXsDf892uB9cAhiVn5ALbRQzfRNqifOKbi0K04dGM29Wahldni/B4BfBj4BvAi4O+B7cC+IGa2xbjZVmjj8XjrZDLZNt/caDS6l5h6AC4f6hVd3d4SgroE0/T3FIc0RNq14uG+VESw6spsHXAdcCHw0TDIpcBBwFZkp4XfztYAR7QyKwpDN657ugF5KF750G5dxG5vtTvLuNE95FKRp1XEzITqJuAS4AbgdOBu4DnARsCEbjmwG1gFHJeYFYWhG9clZopDKgLKpVQk69nxFIciElXE7KHAFwH73Wz6uQx4V3i6cUP4j6uB/QtNQA+AFIWm+eueEt/DN1H50HwNzB1R9dAu/+nosSvkKmJW5KGJ3LHwxOOCbSVmRRibv67ibZ75rBEVB8UhFQFPuVTEJIeYFY35/9clZlGYGm3kKfG1qmk0dU4YTLnULv/5qxoP9VBEVGJWRCjyuoo3ElTmZopDZsCR5hWHSFCZm3mKQxEqiVkRocjrnpLGw7c4+RCZuJmaqR4ygS1p1lMcilyXmBURirzuKWkkBJFBz9RMuZQJbEmzikNJYJmat/kASJRL+s0sClOjjVS8jeJecDDFQXFIRcBTLhUx0cqsiFDkdU9Jo5VZZNAzNVMuZQJb0qziUBJYpuZamWUCu5BZJX7DwBcYTnFQHFIRUC6lIlnPjsSsHr/SvZX4pZFl6aA4ZMFa2qjiUBpZlg6e4lAESNuMRYQir3tKGm0zRgY9UzPlUiawJc0qDiWBZWqulVkmsNpmbBhsyeF0AyoJLFNzxSET2JJmPcWhyHWtzIoIRV73lDRamUUGPVMz5VImsCXNKg4lgWVq3tTK7Czgu8CPgx8nA8vCexkPL+abHs3PFPkaZlW8NeAl7Ko4JIRZw5TiUANewq65xexU4GHAPwHnA3eGo2D2hHPM1gI7ADugc+ZHYpYw2olMqXgTgaxpRnGoCTBRd8UhEciaZnKL2QVBrOzcspXhAE4738z+eQuwxE6YBlYAR2f5IjGrGeEM3VW8GaBWMKk4VICWoYvikAFqBZO5xcymdArwZWB6mvQVwC5gL2C/xdmJ0+uBQxKzChFsoYuKtwXoM4ZUHBSHVAQ85VIRkzoPgNiJ0zfOEbNrgO3AviBmtsW42VZo4/F462Qy2TZ/MqPR6F7j68GDonDlve4p8ZVLeXOlyLpyqYhQM9c9xaGIWEoxuxQ4GFZk84XuhHlom7EoNM1f95T4ErPm82fuiMqldvlPR/cUhyKiKcXsImAjsA6w39J2A6uA49pmLApDN657SnyJWbs5pVxql7/ErBx/W319DrAnF4+ErcWdwIZgZjWwfyGTWpmVg91Ea92AmqBcPIbiUMyoiRaKQxOUi8do4gGQhWaxFDgW/tZswZlKzIqD2HQLFW/TxGePpzgoDqkIeMqlIiZ1thmLbC96XWJWC1+Wzp4SX9uMWVIk2qhyKRpV1oae4lAESmJWRCjyuqekkRBEBj1TM+VSJrAlzSoOJYFlat7mNmOUS1qZRWFqtJGKt1HcCw6mOCgOqQh4yqUiJlqZFRGKvO4pabQyiwx6pmbKpUxgS5pVHEoCy9RcK7NMYBcyq8RvGPgCwykOikMqAsqlVCTr2ZGY1eNXurcSvzSyLB0UhyxYSxtVHEojy9LBUxyKAGmbsYhQ5HVPSaNtxsigZ2qmXMoEtqRZxaEksEzNtTLLBFbbjA2DLTmcbkAlgWVqrjhkAlvSrKc4FLmulVkRocjrnpJGK7PIoGdqplzKBLakWcWhJLBMzbUyywRWK7OGwZYcTjegksAyNVccMoEtadZTHIpc18qsiFDkdU9Jo5VZZNAzNVMuZQJb0qziUBJYpuZtrcxOBpaF9zIeXsw3/dF0psjXMKvirQEvYVfFISHMGqYUhxrwEnZtQ8xOB/aEAzvtTfo7ADugc+ZHYpYw2olMqXgTgaxpRnGoCTBRd8UhEciaZtoQs0uAlcAWYImdMA2sAI7O8kViVjPCGbqreDNArWBScagALUMXxSED1Aom2xCzK4BdwN5wttm1wHrgkMSsQgRb6KLibQH6jCEVB8UhFQFPuVTEJOUDINcA24F9Qcxsi3GzrdDG4/HWyWSybd5kbgUeXjRBXRcBERABERCBuQROOumkbZs2bTK9+cknpZhdChwEbEVmp1DfCKwJp1C3HolZ25qtT6rkBORDSWCZmisOmcCWNKs4lASWqXlX4pBSzC4CNgLrgOXAbmAVcDwTw1JmuwK81KTnNZYPdeil66s4pGNZx5LiUIdeur5diUNKMTNbO4ENAdNqYH86ZPUsdQV4HS/kQx166foqDulY1rGkONShl65vV+KQUsymdJYCx8LfmqUjVtNSV4DXcUM+1KGXrq/ikI5lHUuKQx166fp2JQ45xCwdpYSW7CGU+T8YJjTfiCn50AjmwkEUh0JEjTRQHBrBXDhIV+IwGDErjIgaiIAIiIAI9JaAxKy3odPERUAEREAEpgSGImbnAA8FPtfD0Nvf4j0izPsU4FtderCmBM+zgOcD9tqzrwIfBX5con/bTR8LPGhOHG4Gvtn2pEqOf3Z4S8/cbj8EPl3STh5LMggAAARCSURBVJvNLX9+Mfwt63QeffPB5v0E4NnA94BPhT9lapNr2bFt/t8Avh062nt5nwx8Fri7rLEU7YciZu8HngM8cg78FPyasGFPh74BeD1wKvD7wJ8C72li8ERjnAd8HrC/Rfwa8DzgWeFPN+xG1IePvRTgtvCF6Azg7cALF3v/aAedmubSWwD7YmQfu5n+HTDp4HxnTencEIM/nDPnPvlg91z7Y98XAZcB9wPeBLwLeGdPYmDTtD+9emN445P9u73C8K7whe/ONvwYgpjZt9Hrw0uQP9Ozm4/lhCX9mcA7QoI8FXh5eFVYH25AlmPXBRG2t8NMP68Nrz8zcevD5wOAvbLt38NkTdDsJmor/v/qgwMzcqkn077XNO39r38e/p61r/P/CPAY4J45ufRK4K3Aj3ri1Px6sC9HX27zRRlDEDP7Nvq/wL+GrS3bLupLwlhe/1b4xnYl8EDgD4CnBYHoQ97bN7ZbQvHOfOl0H5wArHjtZjMVZKudfwbsNW22tdKHj+WSrew/GCZrqwLbere39vTlYy8vvyGcymFf5uxLxd+GFX8ffLAvpz8LWD3b1tzPhxWmbc3Zyn8qcF33xVaRFgt7LaF97gP8WtjGPtLG5L2LmQH+ZNiWs2/P9hJk22q0N/r35WM3oIvDtpZ9+3kmYFstv9mTxJ++2sy2GueKmW2ZtrK3XjHw88XMzNj29dvmCFxF0411s1x6AfC+sGVtA9vK+AuNzaD+QHYDtd/4bGVvv7nalyUTYxOCPnzmipnVxj+EnRdbqdlZkK0IQQVw9jPHvwE3hd8v7bdMe2mGrZxb8cG7mBlY+63mveGbwwU93Juev814X8AePjgfaGVvumTiW8Fawj8D+Hroa3lnN6BRj4RgvphNV5z2Q/j0R/CSaBpvPj+XGp9AggFNzP4S+JUe/c431+3fAH47/G48/Zmg9S26CnHRNmMFaHW62A+rdiO1b6L2eRTwsfDtoS8PHthDBrYS+2PAhOyXw7ZjZ957GREge2fn04GXBAG2h3HsW5zF4/sR/bvQxFZh7wbsd9f7h+1e2/a13y/78lSmiZk9GWtbXLYynn7st7++fOwLqt1IH98j7nPZWs78B/Cy8LOHbTVeDmxqc1VTIfjzv9y1/nJ5zyszg2t76/b7kj3Obh9LHNtqtKfq7K3+ffjY1tCH5kz0DsBWmF/qw+TncB8Drwv/3kcf7AnA35vD3H53einwgx7FwVYFH543X4tFa1tDFdjZFyD7ImSn2fflS8R8N02I7WlAe/Wfff4EeBjwqra26CrEYf4Wu8SsAkR16S8B21e3pLc99T48idlf0pp51wnYLos9vGI7RPZIuz41CXhemdVEo+4iIAIiIAJ9ISAx60ukNE8REAEREIEFCUjMlBwiIAIiIAK9JyAx630I5YAIiIAIiIDETDkgAiIgAiLQewISs96HUA6IgAiIgAj8Hz+jAyvwKNW6AAAAAElFTkSuQmCC"
     },
     "metadata": {},
     "output_type": "display_data"
    }
   ],
   "source": [
    "Vega({\n",
    "  \"$schema\": \"https://vega.github.io/schema/vega/v5.0.json\",\n",
    "  \"width\": 400,\n",
    "  \"height\": 200,\n",
    "  \"padding\": 5,\n",
    "\n",
    "  \"data\": [\n",
    "    {\n",
    "      \"name\": \"table\",\n",
    "      \"values\": [\n",
    "        {\"category\": \"A\", \"amount\": 28},\n",
    "        {\"category\": \"B\", \"amount\": 55},\n",
    "        {\"category\": \"C\", \"amount\": 43},\n",
    "        {\"category\": \"D\", \"amount\": 91},\n",
    "        {\"category\": \"E\", \"amount\": 81},\n",
    "        {\"category\": \"F\", \"amount\": 53},\n",
    "        {\"category\": \"G\", \"amount\": 19},\n",
    "        {\"category\": \"H\", \"amount\": 87}\n",
    "      ]\n",
    "    }\n",
    "  ],\n",
    "\n",
    "  \"signals\": [\n",
    "    {\n",
    "      \"name\": \"tooltip\",\n",
    "      \"value\": {},\n",
    "      \"on\": [\n",
    "        {\"events\": \"rect:mouseover\", \"update\": \"datum\"},\n",
    "        {\"events\": \"rect:mouseout\",  \"update\": \"{}\"}\n",
    "      ]\n",
    "    }\n",
    "  ],\n",
    "\n",
    "  \"scales\": [\n",
    "    {\n",
    "      \"name\": \"xscale\",\n",
    "      \"type\": \"band\",\n",
    "      \"domain\": {\"data\": \"table\", \"field\": \"category\"},\n",
    "      \"range\": \"width\",\n",
    "      \"padding\": 0.05,\n",
    "      \"round\": True\n",
    "    },\n",
    "    {\n",
    "      \"name\": \"yscale\",\n",
    "      \"domain\": {\"data\": \"table\", \"field\": \"amount\"},\n",
    "      \"nice\": True,\n",
    "      \"range\": \"height\"\n",
    "    }\n",
    "  ],\n",
    "\n",
    "  \"axes\": [\n",
    "    { \"orient\": \"bottom\", \"scale\": \"xscale\" },\n",
    "    { \"orient\": \"left\", \"scale\": \"yscale\" }\n",
    "  ],\n",
    "\n",
    "  \"marks\": [\n",
    "    {\n",
    "      \"type\": \"rect\",\n",
    "      \"from\": {\"data\":\"table\"},\n",
    "      \"encode\": {\n",
    "        \"enter\": {\n",
    "          \"x\": {\"scale\": \"xscale\", \"field\": \"category\"},\n",
    "          \"width\": {\"scale\": \"xscale\", \"band\": 1},\n",
    "          \"y\": {\"scale\": \"yscale\", \"field\": \"amount\"},\n",
    "          \"y2\": {\"scale\": \"yscale\", \"value\": 0}\n",
    "        },\n",
    "        \"update\": {\n",
    "          \"fill\": {\"value\": \"steelblue\"}\n",
    "        },\n",
    "        \"hover\": {\n",
    "          \"fill\": {\"value\": \"red\"}\n",
    "        }\n",
    "      }\n",
    "    },\n",
    "    {\n",
    "      \"type\": \"text\",\n",
    "      \"encode\": {\n",
    "        \"enter\": {\n",
    "          \"align\": {\"value\": \"center\"},\n",
    "          \"baseline\": {\"value\": \"bottom\"},\n",
    "          \"fill\": {\"value\": \"#333\"}\n",
    "        },\n",
    "        \"update\": {\n",
    "          \"x\": {\"scale\": \"xscale\", \"signal\": \"tooltip.category\", \"band\": 0.5},\n",
    "          \"y\": {\"scale\": \"yscale\", \"signal\": \"tooltip.amount\", \"offset\": -2},\n",
    "          \"text\": {\"signal\": \"tooltip.amount\"},\n",
    "          \"fillOpacity\": [\n",
    "            {\"test\": \"datum === tooltip\", \"value\": 0},\n",
    "            {\"value\": 1}\n",
    "          ]\n",
    "        }\n",
    "      }\n",
    "    }\n",
    "  ]\n",
    "})"
   ]
  },
  {
   "attachments": {},
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Vega(spec: string)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "metadata": {
    "collapsed": true
   },
   "outputs": [
    {
     "data": {
      "application/vnd.vega.v5+json": "https://raw.githubusercontent.com/vega/vega/master/docs/examples/bar-chart.vg.json",
      "image/png": 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RJGaxpPK2k5jl5RtrXfUQSypvu9g4VBWzDwAXBxdM1C4FRsCucHCn2bVV23rgkMQsb7BTWY9NmlTj5bTj4ZuofMiZIcW2VQ/FjJpoERuHKmJmp0q/EXgf8DXgSuAW4JnAdmAfYHZti3GzrdDG4/HWyWSybb7jo9GoyvhN8Ks8hocbUGXnO9TRQxzkQ7sJFXsTbXeWcaN7yKUiT6uKiT0Acncwfh7wYuBLwMGwIjst/Ha2BjiilVlRGLpxXcXbrTh4uAF58KEbWVFvFkOIQxUxOxO4DVgOfAe4Arg9bCduBNaFa7uBVcBxiVm9RGyqt8SsKdKLj6PfzLoVh27Mpt4sJGYL83s18I5w+bPAc8IKbCewIfz31cD+hUzoAZB6yZmjt8QsB9XyNiVm5Znl6KF6yEG1vM3YOFRZmU1nczpg24l3zpveUuBY+FuzBWcuMSsf1Nw9YpMm9zxS2PfwTVQ+pMiE6jZUD9XZpewZG4c6YlZrvhKzWviydI5NmiyDJzYqIUgMtKQ5T6vLkq53srmHeigCKzErIlTy+hCSpiSSVpp7iIN8aCV1fjKovty1y386emwcJGaJ4+XhBpQYSSvmPMRBPrSSOhKzdrGfMLrErKWAeLgBtYQu6bAe4iAfkqZEaWOxN9HShlvo4CGXirBpZVZEqOT1ISRNSSStNPcQB/nQSupoZdYudq3MusLfww2oKyzrzMNDHORDnQyo31crs/oMU1iIjYNWZiloz7Hh4QaUGEkr5jzEQT60kjpambWLXSuzrvD3cAPqCss68/AQB/lQJwPq941dEdQfKb8FD7lUREkrsyJCJa8PIWlKImmluYc4yIdWUkcrs3axa2XWFf66AbUbCU9/rKtc6kYutTuLNKN7yKUiElqZFREqed1D0siHkkFP3FyCnBhoRXPaZqwILnG32DjUFTM72+wh4a355oL9+7LwXsbDi/mk11kljngCc7qJJoCYwITikABiAhOxN9EEQ2U34eELahGkumJmh2/aadKPBe4H7AnnmK0FdoQDOmfOQWJWFJrmr+sm2jzzWSMqDt2KQzdmU28WErPF+T0VuB7YBTwXeAGwEtgCLLETpoEVwNFZZiRm9ZIzR2/dRHNQLW9TcSjPLEcPrcxyUC1vMzYOVVdmZwche34418wO5PyjIGx7AbN7bVi1HZKYlQ9gGz10E22D+oljKg7dikM3ZlNvFlqZzeZnv4vZiuylwD3APwKPD/+/HdgXxOxqwLYhD4zH462TyWTbfHOj0aiqmNaLbMbeHpJGPmRMkAjTErMISA00iV0RNDCV2kN4qOkiCFXE5Fzg5nCKtP1WZp8PAh8PW4u2IrNDO28E1oQTqE+Yh7YZi0LT/HXdRJtnPmtExaFbcejGbOrNQmI2m9+pwJnAD4HHAO8Bzgdsq3Fj+P/lwG5gFXBc24z1ErGp3rqJNkV68XEUh27FoRuzqTcLiVkxv0cB7waeBkyAncCG0G11WL3NtKKVWTHcplvoJto08dnjKQ7dikM3ZlNvFhKzavyWAsfC35otaEFiVg1uzl66ieakG29bcYhnlbOlfjPLSTfedmwcqvxmFj+LRVpKzJJgTGpEN9GkOCsbUxwqo0vaMfYmmnTQTMa0MssE1sxKzDLCrWhaN9GK4BJ3UxwSA61oTmJWEVzibrFx0MosMXgP34DkQ+KkKGlOYlYSWKbmsTfRTMMnNeuhpouASMyKCJW87iFp5EPJoCduLjFLDLSiOYlZRXCJu8XGQWKWGLyEIDHQkuYkBCWBZWruKQ6ZEDVq1sN9qQiYxKyIUMnrHpJGPpQMeuLmnoTAQy4lDm8r5oYQB4lZ4tTykDTyIXFSlDQnMSsJLFPz2O2tTMMnNeuhpouASMyKCJW87iFp5EPJoCduLjFLDLSiOYlZRXCJu8XGQWKWGLyEIDHQkuYkBCWBZWruKQ6ZEDVq1sN9qQiYxKyIUMnrHpJGPpQMeuLmnoTAQy4lDm8r5oYQB4lZ4tTykDTyIXFSlDQnMSsJLFPz2O2tTMMnNeuhpouA1BGzc4D7AbeFc81sLDvrbFl4L+PhxQbXG0CKQtP8dd1Em2c+a0TFoVtx6MZs6s1CYjabnwmgHbr5XOAzwCXAE4E7gT3hHLO1wA7ADuic+ZGY1UvOHL11E81BtbxNxaE8sxw9tDLLQbW8zdg4VFmZLQE+D9gRL3bS9JuCiD0UWAlsAazNAWAFcHTW9CVm5YOau4duorkJx9lXHOI45W4VexPNPY8U9rUyW5yiHdD5POC9gB3G+XJgF7AXMJG0E6fXA4ckZinSMb8N3UTzM44ZQXGIoZS/jcQsP+OYEWLjUGVlNh3/bOBVQcReDFwObAf2BTGzLUbbjjwwHo+3TiaTbfMnPhqN6owfw6HxNh6+AcmHxtPmXgNKzNrlPx099ibajdkuPgsPNV3EuYqYnAU8BfhwMP4s4PHAd4CDYUV2WvjtbA1wRCuzojB047puoopDKgKecikVkzbtSMxm07enGG8Iv4+ZUL0WuA9wK7ARWBe2HXcDq4DjErM20zh+bE83IA/FKx/iczdHS63MclAtbzM2DlVWZtOnGe3BD/vYgx62UrNH8XcCG8J/twdE9i80dT0AUj6ouXtIzHITjrOvOMRxyt0q9iaaex4p7Hv4YlTEoYqYTW2eEf6uzB7Jn/tZChwLf2u24PizxMwDcPlQlHJ5r0sI8vKNte4pDrE+d7mdh/tSEd86YlZke9HrErNa+LJ09nQD8lC88iFLmkcb1cosGlXWhrFxkJglCoOEIBHImmYUh5oAE3X3FIdESFo14+GLURFAiVkRocjrnorXQ+LLh8jEzdTMUz1kQtSoWQ/1UARMYlZEKPK6p+L1kPjyITJxMzXzVA+ZEDVq1kM9FAGTmBURirzuqXg9JL58iEzcTM081UMmRI2a9VAPRcAkZkWEIq97Kl4PiS8fIhM3UzNP9ZAJUaNmPdRDETCJWRGhyOueitdD4suHyMTN1MxTPWRC1KhZD/VQBExiVkQo8rqn4vWQ+PIhMnEzNfNUD5kQNWrWQz0UAZOYFRGKvO6peD0kvnyITNxMzTzVQyZEjZr1UA9FwCRmRYQir3sqXg+JLx8iEzdTM0/1kAlRo2Y91EMRMIlZEaHI656K10Piy4fIxM3UzFM9ZELUqFkP9VAErI6Y2XlmDwRuB74fBjoZWBbey2gvHl7wo9dZFYWm+euebkAeilc+NF8Dc0eMfY1Su7OMG91DLhV5WlXMLgbeHt6SPwKeBHwF2BPOMVsL7ADsgM6ZH4lZUWiavy4xa575rBEVh27FoRuzqTcLidlsfkvCyutBgL0x/wLAxO36cMbZFsDa2NEwK4Cjs8xIzOolZ47euonmoFrepuJQnlmOHlqZ5aBa3mZsHKquzOyYlzsA638VcBvwYGAXsDf892uB9cAhiVn5ALbRQzfRNqifOKbi0K04dGM29Wahldni/B4BfBj4BvAi4O+B7cC+IGa2xbjZVmjj8XjrZDLZNt/caDS6l5h6AC4f6hVd3d4SgroE0/T3FIc0RNq14uG+VESw6spsHXAdcCHw0TDIpcBBwFZkp4XfztYAR7QyKwpDN657ugF5KF750G5dxG5vtTvLuNE95FKRp1XEzITqJuAS4AbgdOBu4DnARsCEbjmwG1gFHJeYFYWhG9clZopDKgLKpVQk69nxFIciElXE7KHAFwH73Wz6uQx4V3i6cUP4j6uB/QtNQA+AFIWm+eueEt/DN1H50HwNzB1R9dAu/+nosSvkKmJW5KGJ3LHwxOOCbSVmRRibv67ibZ75rBEVB8UhFQFPuVTEJIeYFY35/9clZlGYGm3kKfG1qmk0dU4YTLnULv/5qxoP9VBEVGJWRCjyuoo3ElTmZopDZsCR5hWHSFCZm3mKQxEqiVkRocjrnpLGw7c4+RCZuJmaqR4ygS1p1lMcilyXmBURirzuKWkkBJFBz9RMuZQJbEmzikNJYJmat/kASJRL+s0sClOjjVS8jeJecDDFQXFIRcBTLhUx0cqsiFDkdU9Jo5VZZNAzNVMuZQJb0qziUBJYpuZamWUCu5BZJX7DwBcYTnFQHFIRUC6lIlnPjsSsHr/SvZX4pZFl6aA4ZMFa2qjiUBpZlg6e4lAESNuMRYQir3tKGm0zRgY9UzPlUiawJc0qDiWBZWqulVkmsNpmbBhsyeF0AyoJLFNzxSET2JJmPcWhyHWtzIoIRV73lDRamUUGPVMz5VImsCXNKg4lgWVq3tTK7Czgu8CPgx8nA8vCexkPL+abHs3PFPkaZlW8NeAl7Ko4JIRZw5TiUANewq65xexU4GHAPwHnA3eGo2D2hHPM1gI7ADugc+ZHYpYw2olMqXgTgaxpRnGoCTBRd8UhEciaZnKL2QVBrOzcspXhAE4738z+eQuwxE6YBlYAR2f5IjGrGeEM3VW8GaBWMKk4VICWoYvikAFqBZO5xcymdArwZWB6mvQVwC5gL2C/xdmJ0+uBQxKzChFsoYuKtwXoM4ZUHBSHVAQ85VIRkzoPgNiJ0zfOEbNrgO3AviBmtsW42VZo4/F462Qy2TZ/MqPR6F7j68GDonDlve4p8ZVLeXOlyLpyqYhQM9c9xaGIWEoxuxQ4GFZk84XuhHlom7EoNM1f95T4ErPm82fuiMqldvlPR/cUhyKiKcXsImAjsA6w39J2A6uA49pmLApDN657SnyJWbs5pVxql7/ErBx/W319DrAnF4+ErcWdwIZgZjWwfyGTWpmVg91Ea92AmqBcPIbiUMyoiRaKQxOUi8do4gGQhWaxFDgW/tZswZlKzIqD2HQLFW/TxGePpzgoDqkIeMqlIiZ1thmLbC96XWJWC1+Wzp4SX9uMWVIk2qhyKRpV1oae4lAESmJWRCjyuqekkRBEBj1TM+VSJrAlzSoOJYFlat7mNmOUS1qZRWFqtJGKt1HcCw6mOCgOqQh4yqUiJlqZFRGKvO4pabQyiwx6pmbKpUxgS5pVHEoCy9RcK7NMYBcyq8RvGPgCwykOikMqAsqlVCTr2ZGY1eNXurcSvzSyLB0UhyxYSxtVHEojy9LBUxyKAGmbsYhQ5HVPSaNtxsigZ2qmXMoEtqRZxaEksEzNtTLLBFbbjA2DLTmcbkAlgWVqrjhkAlvSrKc4FLmulVkRocjrnpJGK7PIoGdqplzKBLakWcWhJLBMzbUyywRWK7OGwZYcTjegksAyNVccMoEtadZTHIpc18qsiFDkdU9Jo5VZZNAzNVMuZQJb0qziUBJYpuZtrcxOBpaF9zIeXsw3/dF0psjXMKvirQEvYVfFISHMGqYUhxrwEnZtQ8xOB/aEAzvtTfo7ADugc+ZHYpYw2olMqXgTgaxpRnGoCTBRd8UhEciaZtoQs0uAlcAWYImdMA2sAI7O8kViVjPCGbqreDNArWBScagALUMXxSED1Aom2xCzK4BdwN5wttm1wHrgkMSsQgRb6KLibQH6jCEVB8UhFQFPuVTEJOUDINcA24F9Qcxsi3GzrdDG4/HWyWSybd5kbgUeXjRBXRcBERABERCBuQROOumkbZs2bTK9+cknpZhdChwEbEVmp1DfCKwJp1C3HolZ25qtT6rkBORDSWCZmisOmcCWNKs4lASWqXlX4pBSzC4CNgLrgOXAbmAVcDwTw1JmuwK81KTnNZYPdeil66s4pGNZx5LiUIdeur5diUNKMTNbO4ENAdNqYH86ZPUsdQV4HS/kQx166foqDulY1rGkONShl65vV+KQUsymdJYCx8LfmqUjVtNSV4DXcUM+1KGXrq/ikI5lHUuKQx166fp2JQ45xCwdpYSW7CGU+T8YJjTfiCn50AjmwkEUh0JEjTRQHBrBXDhIV+IwGDErjIgaiIAIiIAI9JaAxKy3odPERUAEREAEpgSGImbnAA8FPtfD0Nvf4j0izPsU4FtderCmBM+zgOcD9tqzrwIfBX5con/bTR8LPGhOHG4Gvtn2pEqOf3Z4S8/cbj8EPl3STh5LMggAAARCSURBVJvNLX9+Mfwt63QeffPB5v0E4NnA94BPhT9lapNr2bFt/t8Avh062nt5nwx8Fri7rLEU7YciZu8HngM8cg78FPyasGFPh74BeD1wKvD7wJ8C72li8ERjnAd8HrC/Rfwa8DzgWeFPN+xG1IePvRTgtvCF6Azg7cALF3v/aAedmubSWwD7YmQfu5n+HTDp4HxnTencEIM/nDPnPvlg91z7Y98XAZcB9wPeBLwLeGdPYmDTtD+9emN445P9u73C8K7whe/ONvwYgpjZt9Hrw0uQP9Ozm4/lhCX9mcA7QoI8FXh5eFVYH25AlmPXBRG2t8NMP68Nrz8zcevD5wOAvbLt38NkTdDsJmor/v/qgwMzcqkn077XNO39r38e/p61r/P/CPAY4J45ufRK4K3Aj3ri1Px6sC9HX27zRRlDEDP7Nvq/wL+GrS3bLupLwlhe/1b4xnYl8EDgD4CnBYHoQ97bN7ZbQvHOfOl0H5wArHjtZjMVZKudfwbsNW22tdKHj+WSrew/GCZrqwLbere39vTlYy8vvyGcymFf5uxLxd+GFX8ffLAvpz8LWD3b1tzPhxWmbc3Zyn8qcF33xVaRFgt7LaF97gP8WtjGPtLG5L2LmQH+ZNiWs2/P9hJk22q0N/r35WM3oIvDtpZ9+3kmYFstv9mTxJ++2sy2GueKmW2ZtrK3XjHw88XMzNj29dvmCFxF0411s1x6AfC+sGVtA9vK+AuNzaD+QHYDtd/4bGVvv7nalyUTYxOCPnzmipnVxj+EnRdbqdlZkK0IQQVw9jPHvwE3hd8v7bdMe2mGrZxb8cG7mBlY+63mveGbwwU93Juev814X8AePjgfaGVvumTiW8Fawj8D+Hroa3lnN6BRj4RgvphNV5z2Q/j0R/CSaBpvPj+XGp9AggFNzP4S+JUe/c431+3fAH47/G48/Zmg9S26CnHRNmMFaHW62A+rdiO1b6L2eRTwsfDtoS8PHthDBrYS+2PAhOyXw7ZjZ957GREge2fn04GXBAG2h3HsW5zF4/sR/bvQxFZh7wbsd9f7h+1e2/a13y/78lSmiZk9GWtbXLYynn7st7++fOwLqt1IH98j7nPZWs78B/Cy8LOHbTVeDmxqc1VTIfjzv9y1/nJ5zyszg2t76/b7kj3Obh9LHNtqtKfq7K3+ffjY1tCH5kz0DsBWmF/qw+TncB8Drwv/3kcf7AnA35vD3H53einwgx7FwVYFH543X4tFa1tDFdjZFyD7ImSn2fflS8R8N02I7WlAe/Wfff4EeBjwqra26CrEYf4Wu8SsAkR16S8B21e3pLc99T48idlf0pp51wnYLos9vGI7RPZIuz41CXhemdVEo+4iIAIiIAJ9ISAx60ukNE8REAEREIEFCUjMlBwiIAIiIAK9JyAx630I5YAIiIAIiIDETDkgAiIgAiLQewISs96HUA6IgAiIgAj8Hz+jAyvwKNW6AAAAAElFTkSuQmCC"
     },
     "metadata": {},
     "output_type": "display_data"
    }
   ],
   "source": [
    "Vega('https://raw.githubusercontent.com/vega/vega/master/docs/examples/bar-chart.vg.json')"
   ]
  },
  {
   "attachments": {},
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## VegaLite(spec: dict)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "metadata": {
    "collapsed": true
   },
   "outputs": [
    {
     "data": {
      "application/vnd.vegalite.v4+json": {
       "$schema": "https://vega.github.io/schema/vega-lite/v4.json",
       "data": {
        "values": [
         {
          "a": "A",
          "b": 28
         },
         {
          "a": "B",
          "b": 55
         },
         {
          "a": "C",
          "b": 43
         },
         {
          "a": "D",
          "b": 91
         },
         {
          "a": "E",
          "b": 81
         },
         {
          "a": "F",
          "b": 53
         },
         {
          "a": "G",
          "b": 19
         },
         {
          "a": "H",
          "b": 87
         },
         {
          "a": "I",
          "b": 52
         }
        ]
       },
       "description": "A simple bar chart with embedded data.",
       "encoding": {
        "x": {
         "field": "a",
         "type": "ordinal"
        },
        "y": {
         "field": "b",
         "type": "quantitative"
        }
       },
       "mark": "bar"
      },
      "image/png": "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"
     },
     "metadata": {},
     "output_type": "display_data"
    }
   ],
   "source": [
    "VegaLite({\n",
    "  \"$schema\": \"https://vega.github.io/schema/vega-lite/v4.json\",\n",
    "  \"description\": \"A simple bar chart with embedded data.\",\n",
    "  \"data\": {\n",
    "    \"values\": [\n",
    "      {\"a\": \"A\",\"b\": 28}, {\"a\": \"B\",\"b\": 55}, {\"a\": \"C\",\"b\": 43},\n",
    "      {\"a\": \"D\",\"b\": 91}, {\"a\": \"E\",\"b\": 81}, {\"a\": \"F\",\"b\": 53},\n",
    "      {\"a\": \"G\",\"b\": 19}, {\"a\": \"H\",\"b\": 87}, {\"a\": \"I\",\"b\": 52}\n",
    "    ]\n",
    "  },\n",
    "  \"mark\": \"bar\",\n",
    "  \"encoding\": {\n",
    "    \"x\": {\"field\": \"a\", \"type\": \"ordinal\"},\n",
    "    \"y\": {\"field\": \"b\", \"type\": \"quantitative\"}\n",
    "  }\n",
    "})"
   ]
  },
  {
   "attachments": {},
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## VegaLite(spec: string)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "metadata": {
    "collapsed": true
   },
   "outputs": [
    {
     "data": {
      "application/vnd.vegalite.v4+json": "https://raw.githubusercontent.com/vega/vega-lite/master/examples/specs/bar.vl.json",
      "image/png": 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"
     },
     "metadata": {},
     "output_type": "display_data"
    }
   ],
   "source": [
    "VegaLite('https://raw.githubusercontent.com/vega/vega-lite/master/examples/specs/bar.vl.json')"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  }
 ],
 "metadata": {
  "kernelspec": {
   "display_name": "Python 3",
   "language": "python",
   "name": "python3"
  },
  "language_info": {
   "codemirror_mode": {
    "name": "ipython",
    "version": 3
   },
   "file_extension": ".py",
   "mimetype": "text/x-python",
   "name": "python",
   "nbconvert_exporter": "python",
   "pygments_lexer": "ipython3",
   "version": "3.6.5"
  },
  "widgets": {
   "application/vnd.jupyter.widget-state+json": {
    "state": {},
    "version_major": 1,
    "version_minor": 0
   }
  }
 },
 "nbformat": 4,
 "nbformat_minor": 2
}