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app.py
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| 1 |
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import streamlit as st
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| 2 |
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import pandas as pd
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| 3 |
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import numpy as np
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import seaborn as sns
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import matplotlib.pyplot as plt
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from streamlit_extras.stylable_container import stylable_container
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# Charger les données
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try:
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df = pd.read_csv('bank.csv')
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except FileNotFoundError:
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st.error("Le fichier 'bank.csv' n'a pas été trouvé. Veuillez vous assurer qu'il se trouve dans le même répertoire que le script.")
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st.stop()
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st.set_page_config(page_title='Analyse Bancaire Professionnelle',
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page_icon='🏦', layout="wide")
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# --- Styles CSS Personnalisés ---
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st.markdown(
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"""
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<style>
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.reportview-container {
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background: #f7f8fa; /* Fond gris très clair */
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}
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.main {
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background-color: #fff;
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padding: 2rem 3rem;
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border-radius: 12px;
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box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
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}
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h1 {
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color: #2c3e50; /* Bleu foncé élégant */
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text-align: center;
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margin-bottom: 2.5rem;
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font-size: 2.5rem;
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font-weight: 600;
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}
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h3 {
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color: #34495e; /* Bleu légèrement plus clair */
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margin-top: 2rem;
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font-size: 1.3rem;
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font-weight: 500;
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border-bottom: 2px solid #bdc3c7; /* Séparateur subtil */
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padding-bottom: 0.5rem;
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margin-bottom: 1rem;
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}
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.kpi-container {
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background-color: #e7f5ff; /* Bleu très clair pour les KPIs */
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border-radius: 8px;
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padding: 1.5rem;
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text-align: center;
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box-shadow: 0 4px 8px rgba(0, 0, 0, 0.04);
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border-left: 5px solid #3498db; /* Couleur d'accentuation */
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}
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.kpi-label {
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color: #7f8c8d; /* Gris bleuté */
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font-size: 0.9rem;
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margin-bottom: 0.5rem;
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font-weight: 500;
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}
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.kpi-value {
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font-size: 1.8rem;
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font-weight: 700;
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color: #3498db; /* Couleur d'accentuation */
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}
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.chart-container {
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background-color: #fff;
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border-radius: 12px;
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box-shadow: 0 6px 12px rgba(0, 0, 0, 0.06);
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padding: 1.5rem 2rem;
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margin-top: 2rem;
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}
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.dataframe-container {
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background-color: #fff;
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border-radius: 12px;
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box-shadow: 0 6px 12px rgba(0, 0, 0, 0.06);
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padding: 1.5rem;
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margin-top: 2rem;
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}
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/* Style pour le selectbox */
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.st-selectbox > div > div > div > div {
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background-color: #f0f0f0;
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border: 1px solid #ccc;
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border-radius: 6px;
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color: #333;
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padding: 0.5rem;
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}
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/* Style pour le bouton */
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.st-button > button {
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background-color: #3498db;
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color: white;
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border: none;
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border-radius: 6px;
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padding: 0.75rem 1.5rem;
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font-weight: 500;
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cursor: pointer;
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transition: background-color 0.3s ease;
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}
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.st-button > button:hover {
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background-color: #2980b9;
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}
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</style>
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""",
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unsafe_allow_html=True,
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)
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with stylable_container(key="main_container", css_styles="""
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padding: 2rem 3rem;
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border-radius: 12px;
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box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
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background-color: #fff;
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"""):
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# --- Titre du Dashboard ---
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st.title('Analyse Approfondie des Données Bancaires')
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# --- Filtre sur le type de job ---
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job_filter = st.selectbox('Filtrer par métier', pd.unique(df['job']))
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df_filtered = df[df['job'] == job_filter]
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# --- Création d'indicateurs clés (KPIs) ---
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avg_age = np.mean(df_filtered['age'])
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count_married = int(df_filtered[df_filtered['marital'] == 'married']['marital'].count())
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avg_balance = np.mean(df_filtered['balance'])
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kpi1, kpi2, kpi3 = st.columns(3)
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with kpi1:
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st.markdown(f"<div class='kpi-container'><p class='kpi-label'>Âge Moyen</p><p class='kpi-value'>{round(avg_age)} <span style='font-size: 0.8rem;'>ans</span></p></div>", unsafe_allow_html=True)
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with kpi2:
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st.markdown(f"<div class='kpi-container'><p class='kpi-label'>Clients Mariés</p><p class='kpi-value'>{count_married} <span style='font-size: 0.8rem;'>clients</span></p></div>", unsafe_allow_html=True)
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with kpi3:
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st.markdown(f"<div class='kpi-container'><p class='kpi-label'>Solde Moyen</p><p class='kpi-value'>$<span style='font-size: 0.8rem;'> {round(avg_balance, 2)}</span></p></div>", unsafe_allow_html=True)
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# --- Graphiques ---
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col1, col2 = st.columns(2)
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with col1:
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st.markdown('### Répartition de l\'âge par statut marital')
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fig_age_marital = plt.figure(figsize=(10, 5))
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sns.barplot(data=df_filtered, y='age', x='marital', palette='Blues_r')
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plt.title('Âge moyen par statut marital', fontsize=14, fontweight='bold', color='#34495e')
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plt.xlabel('Statut Marital', color='#555')
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plt.ylabel('Âge Moyen', color='#555')
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plt.xticks(fontsize=10)
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plt.yticks(fontsize=10)
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sns.despine() # Supprimer les bordures superflues
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st.pyplot(fig_age_marital)
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with col2:
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st.markdown('### Distribution des soldes des clients')
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fig_balance_dist = plt.figure(figsize=(10, 5))
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sns.histplot(df_filtered['balance'], bins=30, kde=True, color='#3498db', edgecolor='black')
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plt.title('Distribution des soldes', fontsize=14, fontweight='bold', color='#34495e')
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plt.xlabel('Solde', color='#555')
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plt.ylabel('Fréquence', color='#555')
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plt.xticks(fontsize=10)
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plt.yticks(fontsize=10)
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sns.despine()
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st.pyplot(fig_balance_dist)
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# --- Vue détaillée des données filtrées ---
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st.markdown('### Données Détaillées')
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| 165 |
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st.dataframe(df_filtered)
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bank.csv
ADDED
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The diff for this file is too large to render.
See raw diff
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