as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
system
suggest 5 practices to prepare data for machine learning.
user
1. understand and explore the data
2. handle missing data
3. scale and normalize the data
4. split the data into train and test sets
5. reshape the data
assistant