Add a section about the dataframes loading to example-notebook.ipynb

Author: basnijholt

example-notebook.ipynb

@@ -1258,6 +1258,43 @@
     "!ls -lah data  # only works on macOS and Linux systems"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "Alternatively, you can save the learner's data as a `pandas.DataFrame` like"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "df = learner.to_dataframe()\n",
+    "df"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "And load it into an empty learner with"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# This will even set the default arguments to the function `peak`\n",
+    "# so we do not need to partial it\n",
+    "control = adaptive.Learner1D(peak, bounds=(-1, 1))\n",
+    "control.load_dataframe(df)\n",
+    "learner.plot().relabel(\"saved learner\") + control.plot().relabel(\"loaded learner\")"
+   ]
+  },
   {
    "cell_type": "markdown",
    "metadata": {},