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Update app.py
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app.py
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@@ -5,7 +5,6 @@ import plotly.graph_objects as go
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from sqlalchemy import create_engine, text
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from datetime import datetime, timedelta
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import os
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from skimpy import skim
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# ========================== CONFIGURATION ==========================
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st.set_page_config(
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@@ -274,19 +273,139 @@ def page_eda():
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st.error("Impossible de charger les données")
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return
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# ========================== 1. RÉSUMÉ
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st.markdown("## 📋 Résumé
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#
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st.markdown("---")
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from sqlalchemy import create_engine, text
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from datetime import datetime, timedelta
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import os
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# ========================== CONFIGURATION ==========================
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st.set_page_config(
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st.error("Impossible de charger les données")
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return
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# ========================== 1. RÉSUMÉ DU DATASET ==========================
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st.markdown("## 📋 Résumé du Dataset")
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# Informations générales
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col1, col2, col3, col4 = st.columns(4)
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with col1:
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st.metric("📊 Nombre de lignes", f"{len(df):,}")
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with col2:
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st.metric("📋 Nombre de colonnes", f"{len(df.columns)}")
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with col3:
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st.metric("💾 Taille mémoire", f"{df.memory_usage(deep=True).sum() / 1024**2:.2f} MB")
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with col4:
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duplicates = df.duplicated().sum()
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st.metric("🔄 Doublons", f"{duplicates:,}")
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# Valeurs manquantes
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st.markdown("### 🔍 Valeurs manquantes")
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missing = df.isnull().sum()
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missing_pct = (missing / len(df) * 100).round(2)
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missing_df = pd.DataFrame({
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'Colonne': missing.index,
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'Manquantes': missing.values,
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'Pourcentage': missing_pct.values
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})
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missing_df = missing_df[missing_df['Manquantes'] > 0].sort_values('Manquantes', ascending=False)
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if not missing_df.empty:
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fig_missing = px.bar(
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missing_df,
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x='Colonne',
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y='Pourcentage',
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title='Pourcentage de valeurs manquantes par colonne',
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color='Pourcentage',
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color_continuous_scale='Reds',
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text=missing_df['Pourcentage'].apply(lambda x: f"{x:.1f}%")
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)
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fig_missing.update_layout(showlegend=False, height=400)
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st.plotly_chart(fig_missing, use_container_width=True)
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else:
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st.success("✅ Aucune valeur manquante dans le dataset !")
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# Statistiques descriptives
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st.markdown("### 📊 Statistiques descriptives (Variables numériques)")
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# Sélecteur de colonnes numériques
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numeric_cols_all = df.select_dtypes(include=['float64', 'int64']).columns.tolist()
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selected_stats_cols = st.multiselect(
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"Choisissez les colonnes à analyser",
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numeric_cols_all,
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default=numeric_cols_all[:5]
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)
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if selected_stats_cols:
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stats_df = df[selected_stats_cols].describe().T
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stats_df['missing'] = df[selected_stats_cols].isnull().sum().values
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stats_df['missing_pct'] = (stats_df['missing'] / len(df) * 100).round(2)
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# Formater pour l'affichage
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display_stats = stats_df[['count', 'mean', 'std', 'min', '25%', '50%', '75%', 'max', 'missing', 'missing_pct']]
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display_stats.columns = ['Count', 'Moyenne', 'Écart-type', 'Min', 'Q1', 'Médiane', 'Q3', 'Max', 'Manquantes', 'Manquantes (%)']
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st.dataframe(
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display_stats.style.format({
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'Moyenne': '{:.2f}',
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'Écart-type': '{:.2f}',
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'Min': '{:.2f}',
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'Q1': '{:.2f}',
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'Médiane': '{:.2f}',
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'Q3': '{:.2f}',
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'Max': '{:.2f}',
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'Manquantes (%)': '{:.2f}'
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}),
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use_container_width=True
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)
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# Distribution des variables numériques
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st.markdown("### 📈 Distributions des variables numériques")
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selected_dist = st.selectbox("Choisissez une variable à visualiser", selected_stats_cols)
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col_hist, col_box = st.columns(2)
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with col_hist:
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fig_hist = px.histogram(
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df,
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x=selected_dist,
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nbins=50,
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title=f"Distribution de {selected_dist}",
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color_discrete_sequence=['#636EFA']
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)
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fig_hist.update_layout(showlegend=False, height=350)
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st.plotly_chart(fig_hist, use_container_width=True)
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with col_box:
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fig_box = px.box(
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df,
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y=selected_dist,
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title=f"Box plot de {selected_dist}",
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color_discrete_sequence=['#636EFA']
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)
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fig_box.update_layout(showlegend=False, height=350)
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st.plotly_chart(fig_box, use_container_width=True)
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# Variables catégorielles
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st.markdown("### 🏷️ Variables catégorielles")
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categorical_cols = df.select_dtypes(include=['object', 'category']).columns.tolist()
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if categorical_cols:
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selected_cat = st.selectbox("Choisissez une variable catégorielle", categorical_cols)
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value_counts = df[selected_cat].value_counts().head(15)
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col_bar, col_info = st.columns([2, 1])
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with col_bar:
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fig_cat = px.bar(
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x=value_counts.index,
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y=value_counts.values,
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title=f"Top 15 valeurs de {selected_cat}",
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labels={'x': selected_cat, 'y': 'Count'},
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color=value_counts.values,
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color_continuous_scale='Blues'
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)
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fig_cat.update_layout(showlegend=False, height=400)
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st.plotly_chart(fig_cat, use_container_width=True)
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with col_info:
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st.markdown("#### Statistiques")
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st.metric("Valeurs uniques", df[selected_cat].nunique())
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st.metric("Valeur la plus fréquente", value_counts.index[0])
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st.metric("Fréquence max", f"{value_counts.values[0]:,}")
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st.metric("% de la plus fréquente", f"{(value_counts.values[0] / len(df) * 100):.1f}%")
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else:
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st.info("Aucune variable catégorielle détectée")
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st.markdown("---")
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