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    "# Case Study 2\n",
    "\n",
    "The file train.csv (https://raw.githubusercontent.com/masterfloss/data/main/train.csv) is a file that stores information about portuguese railway network.\n",
    "\n",
    "* Create a datframe using the information\n",
    "* Explore data using pandas (e.g. count the number of tunnels, total length of tunnels, number of briges, totl length of briges, count the number of lines, average speed, draw a map with the coodinates of in column geometry)\n",
    "* Create a network using the dataframe\n",
    "* Explore main network metrics \n",
    "* Eplore main metrix related to each node\n",
    "\n",
    "\n",
    "hints:\n",
    " \n",
    " G=nx.from_pandas_edgelist(df)\n",
    " \n",
    " df.groupby(by=[\"name\"]).sum()\n",
    " \n",
    " df[df.tunnel=='yes'].count()\n",
    " \n",
    " https://networkx.org/documentation/stable/tutorial.html\n",
    " \n",
    " https://networkx.org/documentation/stable/reference/algorithms/centrality.html"
   ]
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  {
   "cell_type": "code",
   "execution_count": 1,
   "id": "5e68ff43",
   "metadata": {},
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   "source": [
    "import pandas as pd\n",
    "import networkx as nx"
   ]
  }
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