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Data Analysis for ML/AI

Data types and schemas

Numeric, string, datetime, categorical — pick the right type and prevent silent bugs.

5 lessons Follow in order
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Lessons in sequence

Work through these in order—each lesson builds on the previous one.

  1. Lesson 1 of 5

    Numeric types: int, float, decimal

    Enroll to open · 10 min read

  2. Lesson 2 of 5

    Strings and categoricals

    Enroll to open · 10 min read

  3. Lesson 3 of 5

    Dates and timestamps

    Enroll to open · 11 min read

  4. Lesson 4 of 5

    Type coercion pitfalls

    Enroll to open · 10 min read

  5. Lesson 5 of 5

    Data schemas and contracts

    Enroll to open · 10 min read

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