使用期限*
许可形式单机版
原产地美国
介质下载
适用平台Windows
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Decision Tree Poster Helps you understand the Advisor Wizard logic
PC-ORD Features not Found in R
Comparison of PC-ORD and R
Weighted Averaging
The simplest yet often effective method of ordination is weighted averaging. The essential operation is the same: a set of pre-assigned species weights (or weights for species groups) are used to calculate scores for sites (sample units). The calculation is a weighted averaging for species or species groups actually present in a sample unit. Weighted averaging used in Federal Manual and numerous ecological indices.
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