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import streamlit as st
import pandas as pd
import plotly.express as px
import matplotlib.pyplot as plt
import numpy as np
import lightgbm as lgb
from sklearn.feature_extraction.text import TfidfVectorizer
from sklearn.metrics.pairwise import cosine_similarity
# Page configuration
st.set_page_config(page_title="Customer Insights App", page_icon=":bar_chart:")
# Load CSV files at the top, only once
df = pd.read_csv("df_clean.csv")
nombres_proveedores = pd.read_csv("nombres_proveedores.csv", sep=';')
euros_proveedor = pd.read_csv("euros_proveedor.csv", sep=',')
ventas_clientes = pd.read_csv("ventas_clientes.csv", sep=',')
customer_clusters = pd.read_csv('predicts/customer_clusters.csv') # Load the customer clusters here
# Ensure customer codes are strings
df['CLIENTE'] = df['CLIENTE'].astype(str)
nombres_proveedores['codigo'] = nombres_proveedores['codigo'].astype(str)
euros_proveedor['CLIENTE'] = euros_proveedor['CLIENTE'].astype(str)
customer_clusters['cliente_id'] = customer_clusters['cliente_id'].astype(str) # Ensure customer IDs are strings
fieles_df = pd.read_csv("clientes_relevantes.csv")
cestas = pd.read_csv("cestas.csv")
productos = pd.read_csv("productos.csv")
# Convert all columns except 'CLIENTE' to float in euros_proveedor
for col in euros_proveedor.columns:
if col != 'CLIENTE':
euros_proveedor[col] = pd.to_numeric(euros_proveedor[col], errors='coerce')
# Check for NaN values after conversion
if euros_proveedor.isna().any().any():
st.warning("Some values in euros_proveedor couldn't be converted to numbers. Please review the input data.")
# Ignore the last two columns of df
df = df.iloc[:, :-2]
# Function to get supplier name
def get_supplier_name(code):
code = str(code) # Ensure code is a string
name = nombres_proveedores[nombres_proveedores['codigo'] == code]['nombre'].values
return name[0] if len(name) > 0 else code
# Function to create radar chart with square root transformation
def radar_chart(categories, values, amounts, title):
N = len(categories)
angles = [n / float(N) * 2 * np.pi for n in range(N)]
angles += angles[:1]
fig, ax = plt.subplots(figsize=(12, 12), subplot_kw=dict(projection='polar'))
# Apply square root transformation
sqrt_values = np.sqrt(values)
sqrt_amounts = np.sqrt(amounts)
max_sqrt_value = max(sqrt_values)
normalized_values = [v / max_sqrt_value for v in sqrt_values]
# Adjust scaling for spend values
max_sqrt_amount = max(sqrt_amounts)
scaling_factor = 0.7 # Adjust this value to control how much the spend values are scaled up
normalized_amounts = [min((a / max_sqrt_amount) * scaling_factor, 1.0) for a in sqrt_amounts]
normalized_values += normalized_values[:1]
ax.plot(angles, normalized_values, 'o-', linewidth=2, color='#FF69B4', label='% Units (sqrt)')
ax.fill(angles, normalized_values, alpha=0.25, color='#FF69B4')
normalized_amounts += normalized_amounts[:1]
ax.plot(angles, normalized_amounts, 'o-', linewidth=2, color='#4B0082', label='% Spend (sqrt)')
ax.fill(angles, normalized_amounts, alpha=0.25, color='#4B0082')
ax.set_xticks(angles[:-1])
ax.set_xticklabels(categories, size=8, wrap=True)
ax.set_ylim(0, 1)
circles = np.linspace(0, 1, 5)
for circle in circles:
ax.plot(angles, [circle]*len(angles), '--', color='gray', alpha=0.3, linewidth=0.5)
ax.set_yticklabels([])
ax.spines['polar'].set_visible(False)
plt.title(title, size=16, y=1.1)
plt.legend(loc='upper right', bbox_to_anchor=(1.3, 1.1))
return fig
# Main page design
st.title("Welcome to Customer Insights App")
st.markdown("""
This app helps businesses analyze customer behaviors and provide personalized recommendations based on purchase history.
Use the tools below to dive deeper into your customer data.
""")
# Navigation menu
page = st.selectbox("Select the tool you want to use", ["", "Customer Analysis", "Articles Recommendations"])
# Home Page
if page == "":
st.markdown("## Welcome to the Customer Insights App")
st.write("Use the dropdown menu to navigate between the different sections.")
# Customer Analysis Page
elif page == "Customer Analysis":
st.title("Customer Analysis")
st.markdown("Use the tools below to explore your customer data.")
partial_code = st.text_input("Enter part of Customer Code (or leave empty to see all)")
if partial_code:
filtered_customers = df[df['CLIENTE'].str.contains(partial_code)]
else:
filtered_customers = df
customer_list = filtered_customers['CLIENTE'].unique()
customer_code = st.selectbox("Select Customer Code", customer_list)
if st.button("Calcular"):
if customer_code:
customer_data = df[df["CLIENTE"] == str(customer_code)]
customer_euros = euros_proveedor[euros_proveedor["CLIENTE"] == str(customer_code)]
# Check if customer data exists
if not customer_data.empty and not customer_euros.empty:
st.write(f"### Analysis for Customer {customer_code}")
# **Find Customer's Cluster**
customer_match = customer_clusters[customer_clusters['cliente_id'] == customer_code]
if not customer_match.empty:
cluster = customer_match['cluster_id'].values[0]
st.write(f"Customer {customer_code} belongs to cluster {cluster}")
else:
st.error(f"Customer {customer_code} not found in customer_clusters.")
st.stop() # Stop further execution if no cluster is found
# **Step 2: Load the Corresponding Model**
model_path = f'models/modelo_cluster_{cluster}.txt'
gbm = lgb.Booster(model_file=model_path)
st.write(f"Loaded model for cluster {cluster}")
# **Step 3: Load X_predict for that cluster and extract customer-specific data**
X_predict_cluster = pd.read_csv(f'predicts/X_predict_cluster_{cluster}.csv')
X_cliente = X_predict_cluster[X_predict_cluster['cliente_id'] == customer_code]
if not X_cliente.empty:
# **Step 4: Make Prediction for the selected customer**
y_pred = gbm.predict(X_cliente.drop(columns=['cliente_id']), num_iteration=gbm.best_iteration)
st.write(f"Predicted sales for Customer {customer_code}: {y_pred[0]:.2f}")
# **Step 5: Merge with actual data from df_agg_2024**
df_agg_2024 = pd.read_csv('predicts/df_agg_2024.csv')
actual_sales = df_agg_2024[(df_agg_2024['cliente_id'] == customer_code) & (df_agg_2024['marca_id_encoded'].isin(X_cliente['marca_id_encoded']))]
if not actual_sales.empty:
merged_data = pd.merge(
pd.DataFrame({'cliente_id': [customer_code], 'ventas_predichas': y_pred}),
actual_sales[['cliente_id', 'marca_id_encoded', 'precio_total']],
on='cliente_id',
how='left'
)
merged_data.rename(columns={'precio_total': 'ventas_reales'}, inplace=True)
# Calculate metrics (MAE, MAPE, RMSE, SMAPE)
mae = mean_absolute_error(merged_data['ventas_reales'], merged_data['ventas_predichas'])
mape = np.mean(np.abs((merged_data['ventas_reales'] - merged_data['ventas_predichas']) / merged_data['ventas_reales'])) * 100
rmse = np.sqrt(mean_squared_error(merged_data['ventas_reales'], merged_data['ventas_predichas']))
smape_value = smape(merged_data['ventas_reales'], merged_data['ventas_predichas'])
st.write(f"MAE: {mae:.2f}")
st.write(f"MAPE: {mape:.2f}%")
st.write(f"RMSE: {rmse:.2f}")
st.write(f"SMAPE: {smape_value:.2f}%")
# **Step 6: Analysis of results (show insights if the customer is performing well or not)**
if mae < threshold_good:
st.success(f"Customer {customer_code} is performing well based on the predictions.")
else:
st.warning(f"Customer {customer_code} is not performing well based on the predictions.")
else:
st.warning(f"No actual sales data found for customer {customer_code} in df_agg_2024.")
# **Show the radar chart**
all_manufacturers = customer_data.iloc[:, 1:].T # Exclude CLIENTE column
all_manufacturers.index = all_manufacturers.index.astype(str)
sales_data = customer_euros.iloc[:, 1:].T # Exclude CLIENTE column
sales_data.index = sales_data.index.astype(str)
sales_data_filtered = sales_data.drop(index='CLIENTE', errors='ignore')
sales_data_filtered = sales_data_filtered.apply(pd.to_numeric, errors='coerce')
top_units = all_manufacturers.sort_values(by=all_manufacturers.columns[0], ascending=False).head(10)
top_sales = sales_data_filtered.sort_values(by=sales_data_filtered.columns[0], ascending=False).head(10)
combined_top = pd.concat([top_units, top_sales]).index.unique()[:20]
combined_top = [m for m in combined_top if m in all_manufacturers.index and m in sales_data_filtered.index]
combined_data = pd.DataFrame({
'units': all_manufacturers.loc[combined_top, all_manufacturers.columns[0]],
'sales': sales_data_filtered.loc[combined_top, sales_data_filtered.columns[0]]
}).fillna(0)
combined_data_sorted = combined_data.sort_values(by=['units', 'sales'], ascending=False)
non_zero_manufacturers = combined_data_sorted[combined_data_sorted['units'] > 0]
if len(non_zero_manufacturers) < 3:
zero_manufacturers = combined_data_sorted[combined_data_sorted['units'] == 0].head(3 - len(non_zero_manufacturers))
manufacturers_to_show = pd.concat([non_zero_manufacturers, zero_manufacturers])
else:
manufacturers_to_show = non_zero_manufacturers
values = manufacturers_to_show['units'].tolist()
amounts = manufacturers_to_show['sales'].tolist()
manufacturers = [get_supplier_name(m) for m in manufacturers_to_show.index]
st.write(f"### Results for top {len(manufacturers)} manufacturers:")
for manufacturer, value, amount in zip(manufacturers, values, amounts):
st.write(f"{manufacturer} = {value:.2f}% of units, €{amount:.2f} total sales")
if manufacturers:
fig = radar_chart(manufacturers, values, amounts, f'Radar Chart for Top {len(manufacturers)} Manufacturers of Customer {customer_code}')
st.pyplot(fig)
else:
st.warning("No data available to create the radar chart.")
# **Show sales over the years graph**
sales_columns = ['VENTA_2021', 'VENTA_2022', 'VENTA_2023']
if all(col in ventas_clientes.columns for col in sales_columns):
years = ['2021', '2022', '2023']
customer_sales = ventas_clientes[ventas_clientes['codigo_cliente'] == customer_code][sales_columns].values[0]
fig_sales = px.line(x=years, y=customer_sales, markers=True, title=f'Sales Over the Years for Customer {customer_code}')
fig_sales.update_layout(xaxis_title="Year", yaxis_title="Sales")
st.plotly_chart(fig_sales)
else:
st.warning("Sales data for 2021-2023 not available.")
else:
st.warning(f"No prediction data found for customer {customer_code}.")
else:
st.warning(f"No data found for customer {customer_code}. Please check the code.")
else:
st.warning("Please select a customer.")
# Customer Recommendations Page
elif page == "Articles Recommendations":
st.title("Articles Recommendations")
st.markdown("""
Get tailored recommendations for your customers based on their basket.
""")
# Campo input para cliente
partial_code = st.text_input("Enter part of Customer Code for Recommendations (or leave empty to see all)")
if partial_code:
filtered_customers = df[df['CLIENTE'].str.contains(partial_code)]
else:
filtered_customers = df
customer_list = filtered_customers['CLIENTE'].unique()
customer_code = st.selectbox("Select Customer Code for Recommendations", [""] + list(customer_list))
# Definición de la función recomienda
def recomienda(new_basket):
# Calcular la matriz TF-IDF
tfidf = TfidfVectorizer()
tfidf_matrix = tfidf.fit_transform(cestas['Cestas'])
# Convertir la nueva cesta en formato TF-IDF
new_basket_str = ' '.join(new_basket)
new_basket_tfidf = tfidf.transform([new_basket_str])
# Comparar la nueva cesta con las anteriores
similarities = cosine_similarity(new_basket_tfidf, tfidf_matrix)
# Obtener los índices de las cestas más similares
similar_indices = similarities.argsort()[0][-3:] # Las 3 más similares
# Crear un diccionario para contar las recomendaciones
recommendations_count = {}
total_similarity = 0
# Recomendar productos de cestas similares
for idx in similar_indices:
sim_score = similarities[0][idx]
total_similarity += sim_score
products = cestas.iloc[idx]['Cestas'].split()
for product in products:
if product.strip() not in new_basket: # Evitar recomendar lo que ya está en la cesta
if product.strip() in recommendations_count:
recommendations_count[product.strip()] += sim_score
else:
recommendations_count[product.strip()] = sim_score
# Calcular la probabilidad relativa de cada producto recomendado
recommendations_with_prob = []
if total_similarity > 0: # Verificar que total_similarity no sea cero
recommendations_with_prob = [(product, score / total_similarity) for product, score in recommendations_count.items()]
else:
print("No se encontraron similitudes suficientes para calcular probabilidades.")
recommendations_with_prob.sort(key=lambda x: x[1], reverse=True) # Ordenar por puntuación
# Crear un nuevo DataFrame para almacenar las recomendaciones con descripciones y probabilidades
recommendations_df = pd.DataFrame(columns=['ARTICULO', 'DESCRIPCION', 'PROBABILIDAD'])
# Agregar las recomendaciones al DataFrame usando pd.concat
for product, prob in recommendations_with_prob:
# Buscar la descripción en el DataFrame de productos
description = productos.loc[productos['ARTICULO'] == product, 'DESCRIPCION']
if not description.empty:
# Crear un nuevo DataFrame temporal para la recomendación
temp_df = pd.DataFrame({
'ARTICULO': [product],
'DESCRIPCION': [description.values[0]], # Obtener el primer valor encontrado
'PROBABILIDAD': [prob]
})
# Concatenar el DataFrame temporal al DataFrame de recomendaciones
recommendations_df = pd.concat([recommendations_df, temp_df], ignore_index=True)
return recommendations_df
# Comprobar si el cliente está en el CSV de fieles
is_fiel = customer_code in fieles_df['Cliente'].astype(str).values
if customer_code:
if is_fiel:
st.write(f"### Customer {customer_code} is a loyal customer.")
option = st.selectbox("Select Recommendation Type", ["Select an option", "By Purchase History", "By Current Basket"])
if option == "By Purchase History":
st.warning("Option not available... aún")
elif option == "By Current Basket":
st.write("Select the items and assign quantities for the basket:")
# Mostrar lista de artículos disponibles
available_articles = productos['ARTICULO'].unique()
selected_articles = st.multiselect("Select Articles", available_articles)
# Crear inputs para ingresar las cantidades de cada artículo seleccionado
quantities = {}
for article in selected_articles:
quantities[article] = st.number_input(f"Quantity for {article}", min_value=0, step=1)
if st.button("Calcular"): # Añadimos el botón "Calcular"
# Crear una lista de artículos basada en la selección
new_basket = [f"{article} x{quantities[article]}" for article in selected_articles if quantities[article] > 0]
if new_basket:
# Procesar la lista para recomendar
recommendations_df = recomienda(new_basket)
if not recommendations_df.empty:
st.write("### Recommendations based on the current basket:")
st.dataframe(recommendations_df)
else:
st.warning("No recommendations found for the provided basket.")
else:
st.warning("Please select at least one article and set its quantity.")
else:
st.write(f"### Customer {customer_code} is not a loyal customer.")
st.write("Select items and assign quantities for the basket:")
# Mostrar lista de artículos disponibles
available_articles = productos['ARTICULO'].unique()
selected_articles = st.multiselect("Select Articles", available_articles)
# Crear inputs para ingresar las cantidades de cada artículo seleccionado
quantities = {}
for article in selected_articles:
quantities[article] = st.number_input(f"Quantity for {article}", min_value=0, step=1)
if st.button("Calcular"): # Añadimos el botón "Calcular"
# Crear una lista de artículos basada en la selección
new_basket = [f"{article} x{quantities[article]}" for article in selected_articles if quantities[article] > 0]
if new_basket:
# Procesar la lista para recomendar
recommendations_df = recomienda(new_basket)
if not recommendations_df.empty:
st.write("### Recommendations based on the current basket:")
st.dataframe(recommendations_df)
else:
st.warning("No recommendations found for the provided basket.")
else:
st.warning("Please select at least one article and set its quantity.")
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