A new linear method for analyzing four‐way multiblock tables: STATIS‐4

Abstract

A new four-way multiblock method is proposed to study the links between more than two sets of data tables (several multiblocks) measured on the same observations. This method, called STATIS-4, generalizes the STATIS method to more than one set of matrices. In its first step, STATIS-4 is searching for one consensus for each multiblock and a global consensus summarizing all the previous ones as good as possible. Some graphical representations can be made to visualize the proximities between the tables within a multiblock and to visualize those between all the multiblocks. Moreover, plots of the observations for each table, each multiblock and global observations can be made. The theory of STATIS-4 and the algorithm used to obtain the optimal solutions are presented. Moreover, a real sensory dataset is studied with STATIS-4.

Assessing the structure of the CAST (Cannabis Abuse Screening Test) in 13 European countries using multigroup analyses

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“…A very comprehensive package (oriented for ecologists) is the R‐package ade4 56, 134. STATIS‐4 has been programmed in S (and is likely to run with R) and is available from Ref 60. Also all the techniques described in this article (with the exception of STATIS‐4) have been programmed in MATLAB and are available from the senior author's home page at www.utdallas.edu/∼herve.…”

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