From 168bb0a5d731cd091cdc69291285f5221e9a9271 Mon Sep 17 00:00:00 2001
From: martinb-bb <105685594+martinb-bb@users.noreply.github.com>
Date: Wed, 8 Feb 2023 14:48:38 -0500
Subject: [PATCH] trans metric

---
 openbb_terminal/forecast/trans_model.py | 4 ++++
 openbb_terminal/forecast/trans_view.py  | 7 +++++++
 2 files changed, 11 insertions(+)

diff --git a/openbb_terminal/forecast/trans_model.py b/openbb_terminal/forecast/trans_model.py
index ac89b255820..21cac569567 100644
--- a/openbb_terminal/forecast/trans_model.py
+++ b/openbb_terminal/forecast/trans_model.py
@@ -40,6 +40,7 @@ def get_trans_data(
     model_save_name: str = "trans_model",
     force_reset: bool = True,
     save_checkpoints: bool = True,
+    metric: str = "mape",
 ) -> Tuple[
     Optional[List[TimeSeries]],
     Optional[List[TimeSeries]],
@@ -94,6 +95,8 @@ def get_trans_data(
         discarded). Defaults to True.
     save_checkpoints: bool
         Whether or not to automatically save the untrained model and checkpoints from training. Defaults to True.
+    metric: str
+        Metric to use for model selection. Defaults to "mape".
 
     Returns
     -------
@@ -176,4 +179,5 @@ def get_trans_data(
         train_split,
         forecast_horizon,
         n_predict,
+        metric,
     )
diff --git a/openbb_terminal/forecast/trans_view.py b/openbb_terminal/forecast/trans_view.py
index fda46a687a6..4ca64c1b5b4 100644
--- a/openbb_terminal/forecast/trans_view.py
+++ b/openbb_terminal/forecast/trans_view.py
@@ -47,6 +47,7 @@ def display_trans_forecast(
     end_date: Optional[datetime] = None,
     naive: bool = False,
     export_pred_raw: bool = False,
+    metric: str = "mape",
     external_axes: Optional[List[plt.axes]] = None,
 ):
     """Display Transformer forecast
@@ -112,6 +113,10 @@ def display_trans_forecast(
     naive: bool
         Whether to show the naive baseline. This just assumes the closing price will be the same
         as the previous day's closing price. Defaults to False.
+    export_pred_raw: bool
+        Whether to export the raw predicted values. Defaults to False.
+    metric: str
+        The metric to use for the model. Defaults to "mape".
     external_axes: Optional[List[plt.axes]]
         External axes to plot on
     """
@@ -152,6 +157,7 @@ def display_trans_forecast(
         model_save_name=model_save_name,
         force_reset=force_reset,
         save_checkpoints=save_checkpoints,
+        metric=metric,
     )
     if ticker_series == []:
         return
@@ -176,6 +182,7 @@ def display_trans_forecast(
         naive=naive,
         export_pred_raw=export_pred_raw,
         external_axes=external_axes,
+        metric=metric,
     )
     if residuals:
         helpers.plot_residuals(