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Table 1 Linear trend models and unit level trend components τij (i, j = 0.5, 1.5, …, 239.5; cf. (1))

From: Comparison of estimators of variance for forest inventories with systematic sampling - results from artificial populations

Trendτijmin(τij)mean(τij)max(τij)
Strong(i + j − 241)/120–202
Moderate(i + j − 241)/240–101
Weak(i + j − 241)/480−0.500.5