Personal Finance Tracker with AI Insights

Track your daily expenses from the command line using C++ with built-in AI insights, and visualize monthly spending through an interactive Python dashboard.

📌 Features

🖥️ C++ CLI Application

• Add expenses with date, category, amount, and monthly budget
• View all expenses
• Filter by category
• View total spending vs. budget
• Delete incorrect entries
• Stores data in expenses.csv (CSV format)

🤖 AI-Powered Analytics (C++ - from scratch)

• 📈 Linear Regression – Predict next month's expense based on past spending
• 📊 K-Means Clustering – Classify your spending behavior as Frugal, Balanced, or Overspender
• 🧠 Naive Bayes Classifier – Predict the most likely category for a new expense based on amount
• 📉 Statistical Summary – Calculate and display mean, variance, and standard deviation of expenses
• 📂 Category Probability Distribution – Visualize how frequently each category is used

📊 Python Dashboard

• Reads data from the CSV file
• Displays interactive bar and pie charts using Dash & Plotly
• Launches a local server (localhost:8050) for real-time insights

📁 Project Structure

ExpenseTracker/
│
├── cpp/
│   └── expense_entry.cpp       # C++ source file (main CLI logic)
│
├── python/
│   └── dashboard.py               # Dash dashboard for visualization
│
├── data/
│   └── expenses.csv               # CSV file storing expenses

📸 CLI Working Screenshots

➕ Add Expense

📋 View All Expenses

🧾 Spending Summary

🔍 Filter By Category

❌ Delete Expenses

🔍 Predict Next Month Expenses (AI Analytics)

📊 Show Category Probabilities (AI Analytics)

📈 Show Expense Statistics (AI Analytics)

🤖 Classify Spending Habit (AI Analytics)

🧠 Predict Category using Naive Bayes

❌ Exit

📊 Dashboard Preview

🖥️ Preview for April-25

🖥️ Preview for May-25

🖥️ Preview for June-25