examples/workflow_by_code.ipynd: fix an error in R.get_recorder() parameters

get_recorder() needs specify 'recorder_id='. However workflow_by_code.ipynd
didn't. This patch fixes it.

Without this fix, here is the error message jupyter-notebook reports:

"---------------------------------------------------------------------------
TypeError Traceback (most recent call last)

<ipython-input-7-e6a7b5f4da00> in <module>
26 # backtest and analysis
27 with R.start(experiment_name="backtest_analysis"):
---> 28 recorder = R.get_recorder(rid, experiment_name="train_model")
29 model = recorder.load_object("trained_model")
30

TypeError: get_recorder() takes 1 positional argument but 2 positional arguments (and 1 keyword-only argument) were given"

Signed-off-by: Guodong Xu <[email protected]>

Author: docularxu

examples/workflow_by_code.ipynb

@@ -220,7 +220,7 @@
     "\n",
     "# backtest and analysis\n",
     "with R.start(experiment_name=\"backtest_analysis\"):\n",
-    "    recorder = R.get_recorder(rid, experiment_name=\"train_model\")\n",
+    "    recorder = R.get_recorder(recorder_id=rid, experiment_name=\"train_model\")\n",
     "    model = recorder.load_object(\"trained_model\")\n",
     "\n",
     "    # prediction\n",
@@ -249,7 +249,7 @@
    "source": [
     "from qlib.contrib.report import analysis_model, analysis_position\n",
     "from qlib.data import D\n",
-    "recorder = R.get_recorder(ba_rid, experiment_name=\"backtest_analysis\")\n",
+    "recorder = R.get_recorder(recorder_id=ba_rid, experiment_name=\"backtest_analysis\")\n",
     "pred_df = recorder.load_object(\"pred.pkl\")\n",
     "pred_df_dates = pred_df.index.get_level_values(level='datetime')\n",
     "report_normal_df = recorder.load_object(\"portfolio_analysis/report_normal.pkl\")\n",