diff --git a/notebooks/examples/covidtracking-example.ipynb b/notebooks/examples/covidtracking-example.ipynb
new file mode 100644
index 0000000000000000000000000000000000000000..89fa1b8dc6787c66f79224ca6e31e9f2eb803a8d
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+++ b/notebooks/examples/covidtracking-example.ipynb
@@ -0,0 +1,1058 @@
+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "import pandas as pd\n",
+    "import altair as alt"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Look at the metadata"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 2,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "metadata_df = pd.read_json('../../data/covidtracking/states-metadata.json')"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 3,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "<div>\n",
+       "<style scoped>\n",
+       "    .dataframe tbody tr th:only-of-type {\n",
+       "        vertical-align: middle;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe tbody tr th {\n",
+       "        vertical-align: top;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe thead th {\n",
+       "        text-align: right;\n",
+       "    }\n",
+       "</style>\n",
+       "<table border=\"1\" class=\"dataframe\">\n",
+       "  <thead>\n",
+       "    <tr style=\"text-align: right;\">\n",
+       "      <th></th>\n",
+       "      <th>state</th>\n",
+       "      <th>dataSite</th>\n",
+       "      <th>covid19Site</th>\n",
+       "      <th>twitter</th>\n",
+       "      <th>pui</th>\n",
+       "      <th>pum</th>\n",
+       "      <th>notes</th>\n",
+       "      <th>name</th>\n",
+       "    </tr>\n",
+       "  </thead>\n",
+       "  <tbody>\n",
+       "    <tr>\n",
+       "      <th>0</th>\n",
+       "      <td>AK</td>\n",
+       "      <td>http://dhss.alaska.gov/dph/Epi/id/Pages/COVID-...</td>\n",
+       "      <td>http://dhss.alaska.gov/dph/Epi/id/Pages/COVID-...</td>\n",
+       "      <td>@Alaska_DHSS</td>\n",
+       "      <td>All data</td>\n",
+       "      <td>False</td>\n",
+       "      <td>Unclear if their reported number means \"person...</td>\n",
+       "      <td>Alaska</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>1</th>\n",
+       "      <td>AL</td>\n",
+       "      <td>http://www.alabamapublichealth.gov/infectiousd...</td>\n",
+       "      <td>http://www.alabamapublichealth.gov/infectiousd...</td>\n",
+       "      <td>@alpublichealth</td>\n",
+       "      <td>No data</td>\n",
+       "      <td>False</td>\n",
+       "      <td>Last negative count from 3/16.</td>\n",
+       "      <td>Alabama</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>2</th>\n",
+       "      <td>AR</td>\n",
+       "      <td>https://www.healthy.arkansas.gov/programs-serv...</td>\n",
+       "      <td>https://www.healthy.arkansas.gov/programs-serv...</td>\n",
+       "      <td>@adhpio</td>\n",
+       "      <td>All data</td>\n",
+       "      <td>True</td>\n",
+       "      <td>Pending = \"PUIs\"</td>\n",
+       "      <td>Arkansas</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>3</th>\n",
+       "      <td>AZ</td>\n",
+       "      <td>https://www.azdhs.gov/preparedness/epidemiolog...</td>\n",
+       "      <td>https://www.azdhs.gov/preparedness/epidemiolog...</td>\n",
+       "      <td>@azdhs</td>\n",
+       "      <td>All data</td>\n",
+       "      <td>False</td>\n",
+       "      <td>Negative = “Ruled Out”. Our total is slightly ...</td>\n",
+       "      <td>Arizona</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>4</th>\n",
+       "      <td>CA</td>\n",
+       "      <td>https://www.cdph.ca.gov/Programs/CID/DCDC/Page...</td>\n",
+       "      <td>https://www.cdph.ca.gov/Programs/CID/DCDC/Page...</td>\n",
+       "      <td>@CAPublicHealth</td>\n",
+       "      <td>Only positives</td>\n",
+       "      <td>False</td>\n",
+       "      <td>Only positives reported regularly. Add deaths ...</td>\n",
+       "      <td>California</td>\n",
+       "    </tr>\n",
+       "  </tbody>\n",
+       "</table>\n",
+       "</div>"
+      ],
+      "text/plain": [
+       "  state                                           dataSite  \\\n",
+       "0    AK  http://dhss.alaska.gov/dph/Epi/id/Pages/COVID-...   \n",
+       "1    AL  http://www.alabamapublichealth.gov/infectiousd...   \n",
+       "2    AR  https://www.healthy.arkansas.gov/programs-serv...   \n",
+       "3    AZ  https://www.azdhs.gov/preparedness/epidemiolog...   \n",
+       "4    CA  https://www.cdph.ca.gov/Programs/CID/DCDC/Page...   \n",
+       "\n",
+       "                                         covid19Site          twitter  \\\n",
+       "0  http://dhss.alaska.gov/dph/Epi/id/Pages/COVID-...     @Alaska_DHSS   \n",
+       "1  http://www.alabamapublichealth.gov/infectiousd...  @alpublichealth   \n",
+       "2  https://www.healthy.arkansas.gov/programs-serv...          @adhpio   \n",
+       "3  https://www.azdhs.gov/preparedness/epidemiolog...           @azdhs   \n",
+       "4  https://www.cdph.ca.gov/Programs/CID/DCDC/Page...  @CAPublicHealth   \n",
+       "\n",
+       "              pui    pum                                              notes  \\\n",
+       "0        All data  False  Unclear if their reported number means \"person...   \n",
+       "1         No data  False                     Last negative count from 3/16.   \n",
+       "2        All data   True                                   Pending = \"PUIs\"   \n",
+       "3        All data  False  Negative = “Ruled Out”. Our total is slightly ...   \n",
+       "4  Only positives  False  Only positives reported regularly. Add deaths ...   \n",
+       "\n",
+       "         name  \n",
+       "0      Alaska  \n",
+       "1     Alabama  \n",
+       "2    Arkansas  \n",
+       "3     Arizona  \n",
+       "4  California  "
+      ]
+     },
+     "execution_count": 3,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "metadata_df.head()"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Look at the data"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 4,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "data_df = pd.read_json('../../data/covidtracking/states-daily.json')\n",
+    "data_df['date'] = pd.to_datetime(data_df['date'], format=\"%Y%m%d\")"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 11,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "<div>\n",
+       "<style scoped>\n",
+       "    .dataframe tbody tr th:only-of-type {\n",
+       "        vertical-align: middle;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe tbody tr th {\n",
+       "        vertical-align: top;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe thead th {\n",
+       "        text-align: right;\n",
+       "    }\n",
+       "</style>\n",
+       "<table border=\"1\" class=\"dataframe\">\n",
+       "  <thead>\n",
+       "    <tr style=\"text-align: right;\">\n",
+       "      <th></th>\n",
+       "      <th>date</th>\n",
+       "      <th>state</th>\n",
+       "      <th>positive</th>\n",
+       "      <th>negative</th>\n",
+       "      <th>pending</th>\n",
+       "      <th>death</th>\n",
+       "      <th>total</th>\n",
+       "      <th>dateChecked</th>\n",
+       "    </tr>\n",
+       "  </thead>\n",
+       "  <tbody>\n",
+       "    <tr>\n",
+       "      <th>0</th>\n",
+       "      <td>2020-03-18</td>\n",
+       "      <td>AK</td>\n",
+       "      <td>6.0</td>\n",
+       "      <td>406.0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>412.0</td>\n",
+       "      <td>2020-03-18T20:00:00Z</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>1</th>\n",
+       "      <td>2020-03-18</td>\n",
+       "      <td>AL</td>\n",
+       "      <td>46.0</td>\n",
+       "      <td>28.0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>74.0</td>\n",
+       "      <td>2020-03-18T20:00:00Z</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>2</th>\n",
+       "      <td>2020-03-18</td>\n",
+       "      <td>AR</td>\n",
+       "      <td>33.0</td>\n",
+       "      <td>236.0</td>\n",
+       "      <td>50.0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>319.0</td>\n",
+       "      <td>2020-03-18T20:00:00Z</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>3</th>\n",
+       "      <td>2020-03-18</td>\n",
+       "      <td>AZ</td>\n",
+       "      <td>28.0</td>\n",
+       "      <td>148.0</td>\n",
+       "      <td>102.0</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>278.0</td>\n",
+       "      <td>2020-03-18T20:00:00Z</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>4</th>\n",
+       "      <td>2020-03-18</td>\n",
+       "      <td>CA</td>\n",
+       "      <td>611.0</td>\n",
+       "      <td>7981.0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>13.0</td>\n",
+       "      <td>8592.0</td>\n",
+       "      <td>2020-03-18T20:00:00Z</td>\n",
+       "    </tr>\n",
+       "  </tbody>\n",
+       "</table>\n",
+       "</div>"
+      ],
+      "text/plain": [
+       "        date state  positive  negative  pending  death   total  \\\n",
+       "0 2020-03-18    AK       6.0     406.0      NaN    NaN   412.0   \n",
+       "1 2020-03-18    AL      46.0      28.0      NaN    0.0    74.0   \n",
+       "2 2020-03-18    AR      33.0     236.0     50.0    NaN   319.0   \n",
+       "3 2020-03-18    AZ      28.0     148.0    102.0    0.0   278.0   \n",
+       "4 2020-03-18    CA     611.0    7981.0      NaN   13.0  8592.0   \n",
+       "\n",
+       "            dateChecked  \n",
+       "0  2020-03-18T20:00:00Z  \n",
+       "1  2020-03-18T20:00:00Z  \n",
+       "2  2020-03-18T20:00:00Z  \n",
+       "3  2020-03-18T20:00:00Z  \n",
+       "4  2020-03-18T20:00:00Z  "
+      ]
+     },
+     "execution_count": 11,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "data_df.head()"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## How many data points per state?"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 16,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "<div>\n",
+       "<style scoped>\n",
+       "    .dataframe tbody tr th:only-of-type {\n",
+       "        vertical-align: middle;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe tbody tr th {\n",
+       "        vertical-align: top;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe thead th {\n",
+       "        text-align: right;\n",
+       "    }\n",
+       "</style>\n",
+       "<table border=\"1\" class=\"dataframe\">\n",
+       "  <thead>\n",
+       "    <tr style=\"text-align: right;\">\n",
+       "      <th></th>\n",
+       "      <th>state</th>\n",
+       "      <th>date</th>\n",
+       "      <th>positive</th>\n",
+       "      <th>negative</th>\n",
+       "      <th>pending</th>\n",
+       "      <th>death</th>\n",
+       "      <th>total</th>\n",
+       "      <th>dateChecked</th>\n",
+       "    </tr>\n",
+       "  </thead>\n",
+       "  <tbody>\n",
+       "    <tr>\n",
+       "      <th>4</th>\n",
+       "      <td>AZ</td>\n",
+       "      <td>15</td>\n",
+       "      <td>15</td>\n",
+       "      <td>15</td>\n",
+       "      <td>15</td>\n",
+       "      <td>6</td>\n",
+       "      <td>15</td>\n",
+       "      <td>15</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>5</th>\n",
+       "      <td>CA</td>\n",
+       "      <td>15</td>\n",
+       "      <td>15</td>\n",
+       "      <td>15</td>\n",
+       "      <td>0</td>\n",
+       "      <td>7</td>\n",
+       "      <td>15</td>\n",
+       "      <td>15</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>10</th>\n",
+       "      <td>FL</td>\n",
+       "      <td>15</td>\n",
+       "      <td>15</td>\n",
+       "      <td>15</td>\n",
+       "      <td>14</td>\n",
+       "      <td>8</td>\n",
+       "      <td>15</td>\n",
+       "      <td>15</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>11</th>\n",
+       "      <td>GA</td>\n",
+       "      <td>15</td>\n",
+       "      <td>15</td>\n",
+       "      <td>1</td>\n",
+       "      <td>0</td>\n",
+       "      <td>6</td>\n",
+       "      <td>15</td>\n",
+       "      <td>15</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>16</th>\n",
+       "      <td>IL</td>\n",
+       "      <td>15</td>\n",
+       "      <td>15</td>\n",
+       "      <td>15</td>\n",
+       "      <td>12</td>\n",
+       "      <td>2</td>\n",
+       "      <td>15</td>\n",
+       "      <td>15</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>21</th>\n",
+       "      <td>MA</td>\n",
+       "      <td>15</td>\n",
+       "      <td>15</td>\n",
+       "      <td>6</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>14</td>\n",
+       "      <td>15</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>30</th>\n",
+       "      <td>NC</td>\n",
+       "      <td>15</td>\n",
+       "      <td>15</td>\n",
+       "      <td>7</td>\n",
+       "      <td>2</td>\n",
+       "      <td>3</td>\n",
+       "      <td>15</td>\n",
+       "      <td>15</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>33</th>\n",
+       "      <td>NH</td>\n",
+       "      <td>15</td>\n",
+       "      <td>15</td>\n",
+       "      <td>15</td>\n",
+       "      <td>15</td>\n",
+       "      <td>0</td>\n",
+       "      <td>15</td>\n",
+       "      <td>15</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>37</th>\n",
+       "      <td>NY</td>\n",
+       "      <td>15</td>\n",
+       "      <td>15</td>\n",
+       "      <td>13</td>\n",
+       "      <td>4</td>\n",
+       "      <td>4</td>\n",
+       "      <td>15</td>\n",
+       "      <td>15</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>40</th>\n",
+       "      <td>OR</td>\n",
+       "      <td>15</td>\n",
+       "      <td>15</td>\n",
+       "      <td>15</td>\n",
+       "      <td>15</td>\n",
+       "      <td>1</td>\n",
+       "      <td>15</td>\n",
+       "      <td>15</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>44</th>\n",
+       "      <td>SC</td>\n",
+       "      <td>15</td>\n",
+       "      <td>15</td>\n",
+       "      <td>15</td>\n",
+       "      <td>3</td>\n",
+       "      <td>3</td>\n",
+       "      <td>15</td>\n",
+       "      <td>15</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>47</th>\n",
+       "      <td>TX</td>\n",
+       "      <td>15</td>\n",
+       "      <td>15</td>\n",
+       "      <td>2</td>\n",
+       "      <td>0</td>\n",
+       "      <td>2</td>\n",
+       "      <td>15</td>\n",
+       "      <td>15</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>52</th>\n",
+       "      <td>WA</td>\n",
+       "      <td>15</td>\n",
+       "      <td>15</td>\n",
+       "      <td>13</td>\n",
+       "      <td>2</td>\n",
+       "      <td>8</td>\n",
+       "      <td>15</td>\n",
+       "      <td>15</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>53</th>\n",
+       "      <td>WI</td>\n",
+       "      <td>15</td>\n",
+       "      <td>15</td>\n",
+       "      <td>15</td>\n",
+       "      <td>5</td>\n",
+       "      <td>0</td>\n",
+       "      <td>15</td>\n",
+       "      <td>15</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>6</th>\n",
+       "      <td>CO</td>\n",
+       "      <td>14</td>\n",
+       "      <td>14</td>\n",
+       "      <td>14</td>\n",
+       "      <td>4</td>\n",
+       "      <td>5</td>\n",
+       "      <td>14</td>\n",
+       "      <td>14</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>8</th>\n",
+       "      <td>DC</td>\n",
+       "      <td>14</td>\n",
+       "      <td>14</td>\n",
+       "      <td>14</td>\n",
+       "      <td>12</td>\n",
+       "      <td>0</td>\n",
+       "      <td>14</td>\n",
+       "      <td>14</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>22</th>\n",
+       "      <td>MD</td>\n",
+       "      <td>14</td>\n",
+       "      <td>14</td>\n",
+       "      <td>14</td>\n",
+       "      <td>2</td>\n",
+       "      <td>0</td>\n",
+       "      <td>14</td>\n",
+       "      <td>14</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>24</th>\n",
+       "      <td>MI</td>\n",
+       "      <td>14</td>\n",
+       "      <td>14</td>\n",
+       "      <td>14</td>\n",
+       "      <td>12</td>\n",
+       "      <td>0</td>\n",
+       "      <td>14</td>\n",
+       "      <td>14</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>32</th>\n",
+       "      <td>NE</td>\n",
+       "      <td>14</td>\n",
+       "      <td>14</td>\n",
+       "      <td>14</td>\n",
+       "      <td>11</td>\n",
+       "      <td>0</td>\n",
+       "      <td>14</td>\n",
+       "      <td>14</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>34</th>\n",
+       "      <td>NJ</td>\n",
+       "      <td>14</td>\n",
+       "      <td>14</td>\n",
+       "      <td>9</td>\n",
+       "      <td>12</td>\n",
+       "      <td>8</td>\n",
+       "      <td>14</td>\n",
+       "      <td>14</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>36</th>\n",
+       "      <td>NV</td>\n",
+       "      <td>14</td>\n",
+       "      <td>14</td>\n",
+       "      <td>14</td>\n",
+       "      <td>1</td>\n",
+       "      <td>3</td>\n",
+       "      <td>14</td>\n",
+       "      <td>14</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>38</th>\n",
+       "      <td>OH</td>\n",
+       "      <td>14</td>\n",
+       "      <td>14</td>\n",
+       "      <td>14</td>\n",
+       "      <td>12</td>\n",
+       "      <td>0</td>\n",
+       "      <td>14</td>\n",
+       "      <td>14</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>46</th>\n",
+       "      <td>TN</td>\n",
+       "      <td>14</td>\n",
+       "      <td>14</td>\n",
+       "      <td>8</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>14</td>\n",
+       "      <td>14</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>49</th>\n",
+       "      <td>VA</td>\n",
+       "      <td>14</td>\n",
+       "      <td>14</td>\n",
+       "      <td>14</td>\n",
+       "      <td>5</td>\n",
+       "      <td>4</td>\n",
+       "      <td>13</td>\n",
+       "      <td>14</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>0</th>\n",
+       "      <td>AK</td>\n",
+       "      <td>13</td>\n",
+       "      <td>13</td>\n",
+       "      <td>13</td>\n",
+       "      <td>7</td>\n",
+       "      <td>0</td>\n",
+       "      <td>13</td>\n",
+       "      <td>13</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>2</th>\n",
+       "      <td>AR</td>\n",
+       "      <td>13</td>\n",
+       "      <td>13</td>\n",
+       "      <td>13</td>\n",
+       "      <td>13</td>\n",
+       "      <td>0</td>\n",
+       "      <td>13</td>\n",
+       "      <td>13</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>9</th>\n",
+       "      <td>DE</td>\n",
+       "      <td>13</td>\n",
+       "      <td>13</td>\n",
+       "      <td>13</td>\n",
+       "      <td>11</td>\n",
+       "      <td>0</td>\n",
+       "      <td>13</td>\n",
+       "      <td>13</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>14</th>\n",
+       "      <td>IA</td>\n",
+       "      <td>13</td>\n",
+       "      <td>13</td>\n",
+       "      <td>13</td>\n",
+       "      <td>8</td>\n",
+       "      <td>0</td>\n",
+       "      <td>13</td>\n",
+       "      <td>13</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>17</th>\n",
+       "      <td>IN</td>\n",
+       "      <td>13</td>\n",
+       "      <td>13</td>\n",
+       "      <td>9</td>\n",
+       "      <td>0</td>\n",
+       "      <td>5</td>\n",
+       "      <td>13</td>\n",
+       "      <td>13</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>18</th>\n",
+       "      <td>KS</td>\n",
+       "      <td>13</td>\n",
+       "      <td>13</td>\n",
+       "      <td>13</td>\n",
+       "      <td>5</td>\n",
+       "      <td>5</td>\n",
+       "      <td>13</td>\n",
+       "      <td>13</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>19</th>\n",
+       "      <td>KY</td>\n",
+       "      <td>13</td>\n",
+       "      <td>13</td>\n",
+       "      <td>13</td>\n",
+       "      <td>1</td>\n",
+       "      <td>3</td>\n",
+       "      <td>13</td>\n",
+       "      <td>13</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>25</th>\n",
+       "      <td>MN</td>\n",
+       "      <td>13</td>\n",
+       "      <td>13</td>\n",
+       "      <td>13</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>13</td>\n",
+       "      <td>13</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>35</th>\n",
+       "      <td>NM</td>\n",
+       "      <td>13</td>\n",
+       "      <td>13</td>\n",
+       "      <td>13</td>\n",
+       "      <td>4</td>\n",
+       "      <td>0</td>\n",
+       "      <td>13</td>\n",
+       "      <td>13</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>41</th>\n",
+       "      <td>PA</td>\n",
+       "      <td>13</td>\n",
+       "      <td>13</td>\n",
+       "      <td>8</td>\n",
+       "      <td>5</td>\n",
+       "      <td>0</td>\n",
+       "      <td>12</td>\n",
+       "      <td>13</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>51</th>\n",
+       "      <td>VT</td>\n",
+       "      <td>13</td>\n",
+       "      <td>13</td>\n",
+       "      <td>13</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>13</td>\n",
+       "      <td>13</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>54</th>\n",
+       "      <td>WV</td>\n",
+       "      <td>13</td>\n",
+       "      <td>12</td>\n",
+       "      <td>13</td>\n",
+       "      <td>13</td>\n",
+       "      <td>4</td>\n",
+       "      <td>13</td>\n",
+       "      <td>13</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>1</th>\n",
+       "      <td>AL</td>\n",
+       "      <td>12</td>\n",
+       "      <td>11</td>\n",
+       "      <td>9</td>\n",
+       "      <td>4</td>\n",
+       "      <td>4</td>\n",
+       "      <td>12</td>\n",
+       "      <td>12</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>7</th>\n",
+       "      <td>CT</td>\n",
+       "      <td>12</td>\n",
+       "      <td>11</td>\n",
+       "      <td>11</td>\n",
+       "      <td>1</td>\n",
+       "      <td>0</td>\n",
+       "      <td>12</td>\n",
+       "      <td>12</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>13</th>\n",
+       "      <td>HI</td>\n",
+       "      <td>12</td>\n",
+       "      <td>12</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>0</td>\n",
+       "      <td>12</td>\n",
+       "      <td>12</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>15</th>\n",
+       "      <td>ID</td>\n",
+       "      <td>12</td>\n",
+       "      <td>12</td>\n",
+       "      <td>12</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>12</td>\n",
+       "      <td>12</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>20</th>\n",
+       "      <td>LA</td>\n",
+       "      <td>12</td>\n",
+       "      <td>12</td>\n",
+       "      <td>11</td>\n",
+       "      <td>0</td>\n",
+       "      <td>4</td>\n",
+       "      <td>12</td>\n",
+       "      <td>12</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>23</th>\n",
+       "      <td>ME</td>\n",
+       "      <td>12</td>\n",
+       "      <td>12</td>\n",
+       "      <td>12</td>\n",
+       "      <td>6</td>\n",
+       "      <td>0</td>\n",
+       "      <td>12</td>\n",
+       "      <td>12</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>26</th>\n",
+       "      <td>MO</td>\n",
+       "      <td>12</td>\n",
+       "      <td>12</td>\n",
+       "      <td>7</td>\n",
+       "      <td>0</td>\n",
+       "      <td>5</td>\n",
+       "      <td>12</td>\n",
+       "      <td>12</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>28</th>\n",
+       "      <td>MS</td>\n",
+       "      <td>12</td>\n",
+       "      <td>12</td>\n",
+       "      <td>8</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>12</td>\n",
+       "      <td>12</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>29</th>\n",
+       "      <td>MT</td>\n",
+       "      <td>12</td>\n",
+       "      <td>12</td>\n",
+       "      <td>12</td>\n",
+       "      <td>5</td>\n",
+       "      <td>0</td>\n",
+       "      <td>12</td>\n",
+       "      <td>12</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>31</th>\n",
+       "      <td>ND</td>\n",
+       "      <td>12</td>\n",
+       "      <td>11</td>\n",
+       "      <td>12</td>\n",
+       "      <td>8</td>\n",
+       "      <td>6</td>\n",
+       "      <td>12</td>\n",
+       "      <td>12</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>39</th>\n",
+       "      <td>OK</td>\n",
+       "      <td>12</td>\n",
+       "      <td>12</td>\n",
+       "      <td>11</td>\n",
+       "      <td>11</td>\n",
+       "      <td>0</td>\n",
+       "      <td>12</td>\n",
+       "      <td>12</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>43</th>\n",
+       "      <td>RI</td>\n",
+       "      <td>12</td>\n",
+       "      <td>12</td>\n",
+       "      <td>11</td>\n",
+       "      <td>11</td>\n",
+       "      <td>0</td>\n",
+       "      <td>12</td>\n",
+       "      <td>12</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>45</th>\n",
+       "      <td>SD</td>\n",
+       "      <td>12</td>\n",
+       "      <td>12</td>\n",
+       "      <td>12</td>\n",
+       "      <td>12</td>\n",
+       "      <td>1</td>\n",
+       "      <td>12</td>\n",
+       "      <td>12</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>48</th>\n",
+       "      <td>UT</td>\n",
+       "      <td>12</td>\n",
+       "      <td>12</td>\n",
+       "      <td>7</td>\n",
+       "      <td>0</td>\n",
+       "      <td>4</td>\n",
+       "      <td>12</td>\n",
+       "      <td>12</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>55</th>\n",
+       "      <td>WY</td>\n",
+       "      <td>12</td>\n",
+       "      <td>12</td>\n",
+       "      <td>3</td>\n",
+       "      <td>1</td>\n",
+       "      <td>0</td>\n",
+       "      <td>12</td>\n",
+       "      <td>12</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>3</th>\n",
+       "      <td>AS</td>\n",
+       "      <td>3</td>\n",
+       "      <td>3</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>1</td>\n",
+       "      <td>3</td>\n",
+       "      <td>3</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>12</th>\n",
+       "      <td>GU</td>\n",
+       "      <td>3</td>\n",
+       "      <td>3</td>\n",
+       "      <td>3</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>3</td>\n",
+       "      <td>3</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>27</th>\n",
+       "      <td>MP</td>\n",
+       "      <td>3</td>\n",
+       "      <td>3</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>1</td>\n",
+       "      <td>3</td>\n",
+       "      <td>3</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>42</th>\n",
+       "      <td>PR</td>\n",
+       "      <td>3</td>\n",
+       "      <td>3</td>\n",
+       "      <td>3</td>\n",
+       "      <td>2</td>\n",
+       "      <td>0</td>\n",
+       "      <td>3</td>\n",
+       "      <td>3</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>50</th>\n",
+       "      <td>VI</td>\n",
+       "      <td>3</td>\n",
+       "      <td>3</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>1</td>\n",
+       "      <td>3</td>\n",
+       "      <td>3</td>\n",
+       "    </tr>\n",
+       "  </tbody>\n",
+       "</table>\n",
+       "</div>"
+      ],
+      "text/plain": [
+       "   state  date  positive  negative  pending  death  total  dateChecked\n",
+       "4     AZ    15        15        15       15      6     15           15\n",
+       "5     CA    15        15        15        0      7     15           15\n",
+       "10    FL    15        15        15       14      8     15           15\n",
+       "11    GA    15        15         1        0      6     15           15\n",
+       "16    IL    15        15        15       12      2     15           15\n",
+       "21    MA    15        15         6        0      0     14           15\n",
+       "30    NC    15        15         7        2      3     15           15\n",
+       "33    NH    15        15        15       15      0     15           15\n",
+       "37    NY    15        15        13        4      4     15           15\n",
+       "40    OR    15        15        15       15      1     15           15\n",
+       "44    SC    15        15        15        3      3     15           15\n",
+       "47    TX    15        15         2        0      2     15           15\n",
+       "52    WA    15        15        13        2      8     15           15\n",
+       "53    WI    15        15        15        5      0     15           15\n",
+       "6     CO    14        14        14        4      5     14           14\n",
+       "8     DC    14        14        14       12      0     14           14\n",
+       "22    MD    14        14        14        2      0     14           14\n",
+       "24    MI    14        14        14       12      0     14           14\n",
+       "32    NE    14        14        14       11      0     14           14\n",
+       "34    NJ    14        14         9       12      8     14           14\n",
+       "36    NV    14        14        14        1      3     14           14\n",
+       "38    OH    14        14        14       12      0     14           14\n",
+       "46    TN    14        14         8        0      0     14           14\n",
+       "49    VA    14        14        14        5      4     13           14\n",
+       "0     AK    13        13        13        7      0     13           13\n",
+       "2     AR    13        13        13       13      0     13           13\n",
+       "9     DE    13        13        13       11      0     13           13\n",
+       "14    IA    13        13        13        8      0     13           13\n",
+       "17    IN    13        13         9        0      5     13           13\n",
+       "18    KS    13        13        13        5      5     13           13\n",
+       "19    KY    13        13        13        1      3     13           13\n",
+       "25    MN    13        13        13        0      0     13           13\n",
+       "35    NM    13        13        13        4      0     13           13\n",
+       "41    PA    13        13         8        5      0     12           13\n",
+       "51    VT    13        13        13        0      0     13           13\n",
+       "54    WV    13        12        13       13      4     13           13\n",
+       "1     AL    12        11         9        4      4     12           12\n",
+       "7     CT    12        11        11        1      0     12           12\n",
+       "13    HI    12        12         1        1      0     12           12\n",
+       "15    ID    12        12        12        0      0     12           12\n",
+       "20    LA    12        12        11        0      4     12           12\n",
+       "23    ME    12        12        12        6      0     12           12\n",
+       "26    MO    12        12         7        0      5     12           12\n",
+       "28    MS    12        12         8        0      0     12           12\n",
+       "29    MT    12        12        12        5      0     12           12\n",
+       "31    ND    12        11        12        8      6     12           12\n",
+       "39    OK    12        12        11       11      0     12           12\n",
+       "43    RI    12        12        11       11      0     12           12\n",
+       "45    SD    12        12        12       12      1     12           12\n",
+       "48    UT    12        12         7        0      4     12           12\n",
+       "55    WY    12        12         3        1      0     12           12\n",
+       "3     AS     3         3         0        0      1      3            3\n",
+       "12    GU     3         3         3        0      0      3            3\n",
+       "27    MP     3         3         0        0      1      3            3\n",
+       "42    PR     3         3         3        2      0      3            3\n",
+       "50    VI     3         3         0        0      1      3            3"
+      ]
+     },
+     "execution_count": 16,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "summary_df = data_df.groupby('state').count()\n",
+    "summary_df.reset_index().sort_values(['date', 'state'], ascending=[False, True])"
+   ]
+  }
+ ],
+ "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": "3.7.6"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 4
+}