[heavy_tail] Retrieve data from yahoo finance

Author: Jiarui-ZH

RetrieveData.ipynb

@@ -0,0 +1,60 @@
+{
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+   "source": [
+    "The Following retrieves data needed for [heavy_tails]"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 2,
+   "id": "2822e5f8-d817-4e7b-8568-080571fcdb08",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stderr",
+     "output_type": "stream",
+     "text": [
+      "[*********************100%***********************]  1 of 1 completed\n",
+      "[*********************100%***********************]  1 of 1 completed\n"
+     ]
+    }
+   ],
+   "source": [
+    "# Might need to run `pip install --upgrade yfinance` first\n",
+    "import yfinance as yf\n",
+    "\n",
+    "# Download the data for AMZN\n",
+    "Amazon_data = yf.download('AMZN', start='2015-01-01', end='2022-07-01')\n",
+    "Bitcoin_data = yf.download('BTC-USD', '2015-1-1', '2022-7-1')\n",
+    "\n",
+    "Amazon_data.to_csv('lectures/datasets/Amazon_data.csv')\n",
+    "Bitcoin_data.to_csv('lectures/datasets/Bitcoin_data.csv')"
+   ]
+  }
+ ],
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