diff --git a/recopytex/scripts/exam_dash.py b/recopytex/scripts/exam_dash.py
index 1c3e6cd..58831c2 100644
--- a/recopytex/scripts/exam_dash.py
+++ b/recopytex/scripts/exam_dash.py
@@ -30,7 +30,7 @@ app = dash.Dash(__name__, external_stylesheets=external_stylesheets)
 # app = dash.Dash(__name__)
 
 app.layout = html.Div(
-    [
+    children=[
         html.H1("Analyse des notes"),
         html.Div(
             [
@@ -80,6 +80,7 @@ app.layout = html.Div(
                             id="final_score_describe",
                         ),
                         dcc.Graph(id="fig_assessment_hist"),
+                        dcc.Graph(id="fig_competences"),
                     ]
                 ),
             ],
@@ -168,7 +169,6 @@ def update_final_scores_table(data):
 )
 def update_final_scores_descr(data):
     desc = pd.DataFrame.from_records(data)["Note"].describe()
-    print(desc.keys())
     return [{"id": c, "name": c} for c in desc.keys()], [desc.to_dict()]
 
 
@@ -202,6 +202,49 @@ def update_final_scores_hist(data):
     )
     return [fig]
 
+@app.callback(
+    [
+        dash.dependencies.Output("fig_competences", "figure"),
+    ],
+    [dash.dependencies.Input("scores_table", "data")],
+)
+def update_competence_fig(data):
+    scores = pd.DataFrame.from_records(data)
+    scores = flat_df_students(scores).dropna(subset=["Score"])
+    scores = pp_q_scores(scores)
+    pt = pd.pivot_table(
+        scores,
+        index=["Exercice", "Question", "Commentaire"],
+        columns="Score",
+        aggfunc="size",
+        fill_value=0,
+    )
+    for i in {i for i in pt.index.get_level_values(0)}:
+        pt.loc[(str(i), "", ""), :] = ""
+    pt.sort_index(inplace=True)
+    index = (
+        pt.index.get_level_values(0)
+        + ":"
+        + pt.index.get_level_values(1)
+        + " "
+        + pt.index.get_level_values(2)
+    )
+
+    fig = go.Figure()
+    bars = [
+            {"score": -1, "name":"Pas de réponse", "color": COLORS["."]},
+            {"score": 0, "name":"Faut", "color": COLORS[0]},
+            {"score": 1, "name":"Peu juste", "color": COLORS[1]},
+            {"score": 2, "name":"Presque juste", "color": COLORS[2]},
+            {"score": 3, "name":"Juste", "color": COLORS[3]},
+            ]
+    for b in bars:
+        try:
+            fig.add_bar(x=index, y=pt[b["score"]], name=b["name"], marker_color=b["color"])
+        except KeyError:
+            pass
+    fig.update_layout(barmode="relative")
+    return [fig]
 
 @app.callback(
     [dash.dependencies.Output("lastsave", "children")],