add distribution graph to example notebook

freqtrade/templates/strategy_analysis_example.ipynb

@@ -282,6 +282,28 @@
     "graph.show(renderer=\"browser\")\n"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Plot average profit per trade as distribution graph"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "import plotly.figure_factory as ff\n",
+    "\n",
+    "hist_data = [trades.profit_ratio]\n",
+    "group_labels = ['profit_ratio']  # name of the dataset\n",
+    "\n",
+    "fig = ff.create_distplot(hist_data, group_labels,bin_size=0.01)\n",
+    "fig.show()\n"
+   ]
+  },
   {
    "cell_type": "markdown",
    "metadata": {},