Traintest Split

# Mastering the Traintest Split: Your Key to Reliable Model Evaluation in Data Science Ever built a machine learning model that performed brilliantly on your training data, only to crumble when faced with new, unseen data? You're not alone! This is a common pitfall in data science, and the **traintest split** is your first line of defense. It's a simple yet powerful technique that ensures your model's performance is accurately assessed and prevents the dreaded "overfitting." In this compreh