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. 2021 Apr 30;786:147451. doi: 10.1016/j.scitotenv.2021.147451

Table 2.

The non-parametric stationary block bootstrapping algorithm with a VAR model.

Step 0 Estimate a VAR model of order p using the original data and obtain the point forecast(s).
Step 1 Draw random samples with the stationary resampling procedure from the original data with the same size, estimate the VAR model of order p and obtain the point forecast(s).
Step 2 Repeat step 1 for b times.
Step 3 Combine the b + 1 forecast(s).
Step 4 Calculate the point forecast(s) using mean if the bootstrap distribution is symmetric and median if the bootstrap distribution is skewed. Construct the 95% CI by taking the 2.5th percentile and 97.5th percentile together.