Create features from existing data that may add value.
Free SOA Exam PA (Predictive Analytics) lesson in Data Transformations and Unsupervised Learning Techniques. 13 min read, ~2,024 words.
A variable is a raw recorded column; a feature is a variable reshaped to help a model learn. Feature generation adds value when raw fields are skewed, high cardinality, non linear, or not on a comparable scale. Single function transforms (log, square root) compress skew and linearize multiplicative effects. One...
Read the full lesson, free →
Worked examples, audio narration, and practice. Free with a free account, no card.
What this lesson covers
- Content
- Example 1
- Example 2
- Common Mistakes
- Check Your Understanding
- Exam Shortcuts
Learning objectives
- 3a
Browse all free Exam PA lessons or jump into free Exam PA practice questions.