[#157] Example notebook for NLDI data access (#158)

* [#157] new notebook with examples for retrieving data from NLDI

* [#157] fixing corrupted notebook

* [#157] deleting empty cell

* [#157] adding examples with no multi-index

* [#157] reformating code cells

* [#157] updates to nldi examples notebook by Jeff Horsburgh

* Update demos/hydroshare/USGS_dataretrieval_NLDI_Examples.ipynb

Co-authored-by: Elise Hinman <121896266+ehinman@users.noreply.github.com>

* Update demos/hydroshare/USGS_dataretrieval_NLDI_Examples.ipynb

Co-authored-by: Elise Hinman <121896266+ehinman@users.noreply.github.com>

* Update demos/hydroshare/USGS_dataretrieval_NLDI_Examples.ipynb

Co-authored-by: Elise Hinman <121896266+ehinman@users.noreply.github.com>

---------

Co-authored-by: Timothy Hodson <34148978+thodson-usgs@users.noreply.github.com>
Co-authored-by: Elise Hinman <121896266+ehinman@users.noreply.github.com>

Author: 3 people

demos/hydroshare/USGS_dataretrieval_DailyValues_Examples.ipynb

@@ -286,6 +286,23 @@
     "display(dailyMultiSites[0])"
    ]
   },
+  {
+   "metadata": {},
+   "cell_type": "markdown",
+   "source": "The following example is the same as the previous example but with multi index turned off (multi_index=False)"
+  },
+  {
+   "metadata": {},
+   "cell_type": "code",
+   "outputs": [],
+   "execution_count": null,
+   "source": [
+    "dailyMultiSites = nwis.get_dv(sites=[\"01491000\", \"01645000\"], parameterCd=[\"00010\", \"00060\"],\n",
+    "                              start=\"2012-01-01\", end=\"2012-06-30\", statCd=[\"00001\",\"00003\"],\n",
+    "                              multi_index=False)\n",
+    "display(dailyMultiSites[0])"
+   ]
+  },
   {
    "cell_type": "markdown",
    "metadata": {},
@@ -330,4 +347,4 @@
  },
  "nbformat": 4,
  "nbformat_minor": 1
-}
+}

demos/hydroshare/USGS_dataretrieval_GroundwaterLevels_Examples.ipynb

@@ -286,6 +286,23 @@
     "display(data2[0])"
    ]
   },
+  {
+   "metadata": {},
+   "cell_type": "markdown",
+   "source": "The following example is the same as the previous example but with multi index turned off (multi_index=False)"
+  },
+  {
+   "metadata": {},
+   "cell_type": "code",
+   "outputs": [],
+   "execution_count": null,
+   "source": [
+    "site_ids = [\"434400121275801\", \"375907091432201\"]\n",
+    "data2 = nwis.get_gwlevels(sites=site_ids, multi_index=False)\n",
+    "print(\"Retrieved \" + str(len(data2[0])) + \" data values.\")\n",
+    "display(data2[0])"
+   ]
+  },
   {
    "cell_type": "markdown",
    "metadata": {