metaMDS: S3 class placeholder definition (list) for metaMDS
In phyloseq: Handling and analysis of high-throughput microbiome census data

Description Usage Format See Also

The ape package does export a version of its metaMDS-class, partly because it is not really defined formally anywhere. Instead, it is an S3 class extended from the base class, list – this is a very common and easy approach – and proper behavior of any method taking an instance of this class requires exact naming conventions for element names of the list components. The phyloseq package does not provide any validity checks that a given phylo instance is valid (conforms to the conventions in the ape package)... yet. If problems arise, this might be considered, and they could be defined judiciously and within phyloseq.