add analyser batch run performance

docs/source/intro/optimizing_parameters.rst

@@ -107,3 +107,31 @@ TBD
 ==================
 分析批量回测结果
 ==================
+
+.. code-block:: python
+
+    import glob
+    import pandas as pd
+
+
+    results = []
+
+    for name in glob.glob("results/*.pkl"):
+	result_dict = pd.read_pickle(name)
+	summary = result_dict["summary"]
+	results.append({
+	    "name": name,
+	    "annualized_returns": summary["annualized_returns"],
+	    "sharpe": summary["sharpe"],
+	    "max_drawdown": summary["max_drawdown"],
+	})
+
+    results_df = pd.DataFrame(results)
+
+    print("-" * 50)
+    print("Sort by sharpe")
+    print(results_df.sort_values("sharpe", ascending=False)[:10])
+
+    print("-" * 50)
+    print("Sort by annualized_returns")
+    print(results_df.sort_values("annualized_returns", ascending=False)[:10])