diff --git a/hierarchical_review_plots/tilt_ppda_and_build_up_disruption_altair.py b/hierarchical_review_plots/tilt_ppda_and_build_up_disruption_altair.py
index cde6194..797edbb 100644
--- a/hierarchical_review_plots/tilt_ppda_and_build_up_disruption_altair.py
+++ b/hierarchical_review_plots/tilt_ppda_and_build_up_disruption_altair.py
@@ -21,3 +21,25 @@ def make_tilt_ppda_build_up_disruption(tilt_ppda, xcol_param):
         .add_params(xcol_param)
     )
     return tilt_plot
+
+
+def select_indices_presion():
+    dropdown = alt.binding_select(
+        options=["build_up_disruption", "ppda", "tilt"], name="Índices de presión"
+    )
+    return alt.param(value="tilt", bind=dropdown)
+
+
+def make_quality_and_pressure_indexes(tilt_ppda, xcol_param):
+    tilt_plot = (
+        alt.Chart(tilt_ppda)
+        .mark_point()
+        .encode(
+            x=alt.X("x:Q").title(""),
+            y="xG:Q",
+            tooltip=["team", "xG", "tilt", "build_up_disruption", "ppda"],
+        )
+        .transform_calculate(x=f"datum[{xcol_param.name}]")
+        .add_params(xcol_param)
+    )
+    return tilt_plot