2 Descriptive techniques
Simple descriptive methods are the first step of any analysis. They classify the main properties of a series, and often suggest the model to use.
2.1 Components of a time series
2.2 Plotting the series and stationarity
2.3 Transformations
2.4 Estimating and removing the trend
2.5 The sample autocorrelation function
2.6 Practice problems
2.2 Plotting the series and stationarity
2.3 Transformations
2.4 Estimating and removing the trend
2.5 The sample autocorrelation function
2.6 Practice problems
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