- Statistics and Probability Knowledge Checklist
- Top 18 Probability and Statistics Interview Questions for Data Scientists
- What Is the Difference Between Descriptive and Inferential Statistics?
- What Are the Main Measures Used to Describe the Central Tendency of Data?
- What Are the Main Measures Used to Describe the Variability of Data?
- What Are Skewness and Kurtosis?
- Describe the Difference Between Correlation and Autocorrelation
- Explain the Difference Between Probability Distribution and Sampling Distribution
- What Is the Normal Distribution and How Is It Characterized?
- What Are the Assumptions of Linear Regression?
- What Is Hypothesis Testing?
- What Are the Most Common Statistical Tests Used?
- What Is the P-Value and How Can We Interpret It?
- What Is the Confidence Interval?
- What Are the Main Ideas of the Law of Large Numbers?
- What Is the Central Limit Theorem?
- What's the Difference Between Population and Sample in Data Analysis?
- The Difference Between Probability and Likelihood
- What's Your Knowledge of Statistics, and How Have You Used it as a Data Analyst?
- How to Data Scientists Use Statistics?
- General Interview Tips & Tricks
- Probability and Statistics Interview Questions for Data Scientists: Next Steps
What Is a SARIMAX Model?
What Is a SARIMAX Model? What Is a SARIMAX model? Although we have dedicated a series of blog posts to time series models, we are yet to discuss one very important topic – seasonality. Each of the models we examined so far – be it AR , MA , ARMA , ARIMA or ARIMAX has a seasonal equivalent. As you can probably guess, the names for these counterparts will be SARMA, SARIMA, and SARIMAX respectively, with the “S” representing the seasonal aspect. Therefore, the full name of the model would be Seasonal Autoregressive Integrated Moving Average Exogenous model . We can all agree that it’s a mouthful, so we’ll stick with the abbreviation. Additionally, the SARMA and SARIMA can be considered simpler cases of the SARIMAX, where we don’t use integration or exogenous variables, so we’ll mainly focus our attention to the SARIMAX in this tutorial. What Is Seasonality? In case you need a hint, seasonality occurs when certain patterns aren’t ...
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