Update app.py

app.py

@@ -486,8 +486,72 @@ st.markdown(f"""
 </div>
 """, unsafe_allow_html=True)
 # ================= OBJECTIVE 2 =================
+st.markdown('<h3 class="objective-title">OBJECTIVE 2: Hourly Alarm Trend Analysis — When Do Alarms Peak?</h3>', unsafe_allow_html=True)
+
+# Ambil data alarm
+alarm_data = dff[dff['is_alarm'] == 1].copy()
+
+if alarm_data.empty:
+    st.warning("No alarm data to display.")
+else:
+    # Hitung jumlah alarm per jam
+    hourly_alarm_counts = alarm_data['hour'].value_counts().reindex(range(24), fill_value=0)
+
+    # Hitung rata-rata jumlah alarm per jam
+    avg_hourly_alarms = hourly_alarm_counts.mean()  # rata-rata alarm per jam
+
+    # Buat grafik trend
+    fig = px.line(
+        x=hourly_alarm_counts.index,
+        y=hourly_alarm_counts.values,
+        markers=True,
+        line_shape='linear',
+        title=f"Hourly Alarm Trend Analysis (Avg: {avg_hourly_alarms:.2f} alarms/hour)",
+        labels={'x': 'Hour of Day', 'y': 'Number of Alarms'},
+        template="plotly_white"
+    )
+
+    # Tambahkan garis rata-rata
+    fig.add_hline(
+        y=avg_hourly_alarms,
+        line_dash="dash",
+        line_color="red",
+        annotation_text=f"Average: {avg_hourly_alarms:.2f}",
+        annotation_position="top right"
+    )
+
+    fig.update_layout(
+        xaxis=dict(
+            title="Hour of Day",
+            tickmode='array',
+            tickvals=list(range(0, 24)),
+            ticktext=[f"{h:02d}:00" for h in range(24)],
+            tickangle=45
+        ),
+        yaxis=dict(title="Number of Alarms"),
+        margin=dict(t=40, b=20, l=20, r=20)
+    )
+
+    st.plotly_chart(fig, use_container_width=True)
+
+    # Insight singkat
+    peak_hour = hourly_alarm_counts.idxmax()
+    peak_count = hourly_alarm_counts.max()
+    insight_text = f"""
+    • Peak alarm hour: {peak_hour:02d}:00 with {peak_count} alarms.
+    • Average alarms per hour: {avg_hourly_alarms:.2f}.
+    • Total alarms in period: {hourly_alarm_counts.sum()}.
+    """
+    st.markdown(f"""
+    <div class="insight-box">
+        <div class="content">
+    {insight_text.strip()}
+        </div>
+    </div>
+    """, unsafe_allow_html=True)
+# ================= OBJECTIVE 3 =================
 st.markdown("""
-<h3 class="objective-title">OBJECTIVE 2: Alarm Frequency Analysis — When, Where, and Which Tyres Matter Most?</h3>
+<h3 class="objective-title">OBJECTIVE 3: Alarm Frequency Analysis — When, Where, and Which Tyres Matter Most?</h3>
 <small>*Showing only Red High Pressure Alarms</small>
 """, unsafe_allow_html=True)