MathIsimple

Time Series Analysis

Master time series decomposition into deterministic and stochastic components, learn mixed model formulations, and build practical forecasting workflows with rigorous mathematical foundations

4-6 hoursIntermediate to Advanced3 lessons
Learning Objectives
  • Understand decomposition of time series into deterministic and stochastic components
  • Master trend analysis and seasonal pattern extraction methods
  • Apply additive and multiplicative model formulations
  • Implement ARIMA modeling for stochastic components
  • Build forecasting workflows with mixed models
  • Analyze real-world US time series data and case studies

Quick Mathematical Reference

Core Decomposition Models

Additive Model:

Xt=Tt+St+εtX_t = T_t + S_t + \varepsilon_t

Where TtT_t is trend, StS_t is seasonality, and εt\varepsilon_t is the stochastic component.

Multiplicative Model:

Xt=Tt×St×εtX_t = T_t \times S_t \times \varepsilon_t

Used when seasonal effects scale with the level of the series.

Mixed Model:

Xt=Tt×St+εtX_t = T_t \times S_t + \varepsilon_t

Hybrid formulation allowing flexible interaction between components.

Core Learning Modules

📘
Beginner
Preface
Introduction to deterministic and stochastic components, trend definition, random term and mixed model overview.
Duration: 30-60 minutesLessons: 1

What you'll learn:

  • Deterministic vs Stochastic
  • Trend (T_t)
  • Random term (ε_t)
  • Additive & Multiplicative Models

Getting Started

Begin with the preface to understand the decomposition framework, then progress to deterministic and stochastic modules for modeling and forecasting.

Next Steps & Applications

Start Learning

Begin with the preface to understand decomposition framework and modeling principles.

Read Preface

Practice Examples

Apply decomposition methods to real US time series data and case studies.

Practice Now

Begin your journey

Start with Preface