Phase 9 · Advanced Analytics & Predictive Basics

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Time Series Analysis Basics

Part of the Data Analyst Roadmap.

Summary

Analyzing data points ordered over time — trend, seasonality, and noise — the foundation for any forecasting or 'is this metric actually growing' question.

How to Learn This

  • 1Plot a time series and visually identify trend versus seasonal patterns.
  • 2Learn the difference between a trend, a seasonal pattern, and pure noise.
  • 3Try a simple moving average to smooth out noise in a noisy time series.
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