uniscale: Unidimensional Scaling from Seriation Results
Description
Performs (approximate) unidimensional scaling by first performin seriation
to obtain a permutation and the using the permutation to calulate the
configuration.
a precomputed permutation (configuration) order.
If NULL, then seriation is performed using the method
specified in method.
method
seriation method used if o is NULL.
rep
Number of repetitions of the seriation heuristic.
…
additional arguments are passed on to the seriation method.
Value
A vector with the fitted configuration.
Details
Uses the method describes in Maier and De Leeuw (2015) to calculate the
minimum stress configuration for either a given configuration/permutation/order
or for a permutation computed via a seriation method.
The code is similar to uniscale in smacof, but scales to larger
datasets since it does not check all permutations.
References
Mair P., De Leeuw J. (2015). Unidimensional scaling. In Wiley StatsRef: Statistics Reference Online, Wiley, New York.