stop_sammon2 {stops}R Documentation

STOPS versions of Sammon mapping models (via smacofSym)

Description

STOPS versions of Sammon mapping models (via smacofSym)

Usage

stop_sammon2(dis, theta = c(1, 1, -1), ndim = 2, weightmat = NULL,
  init = NULL, ..., stressweight = 1, structures = c("cclusteredness",
  "clinearity", "cdependence", "cmanifoldness", "cassociation",
  "cnonmonotonicity", "cfunctionality", "ccomplexity", "cfaithfulness",
  "cregularity"), strucweight = rep(1/length(structures), length(structures)),
  strucpars, verbose = 0, type = c("additive", "multiplicative"))

Arguments

dis

numeric matrix or dist object of a matrix of proximities

theta

the theta vector of powers; this is either a scalar of the lambda transformation for the observed proximities, or a vector where the first is the kappa argument for the fitted distances (here internally fixed to 1) and the second the lambda argument, the thrid the nu argiument (fixed to -1). Defaults to 1 1 -1.

ndim

number of dimensions of the target space

weightmat

(optional) a matrix of nonnegative weights

init

(optional) initial configuration

...

additional arguments to be passed to the fitting procedure

stressweight

weight to be used for the fit measure; defaults to 1

structures

which structuredness indices to be included in the loss

strucweight

weight to be used for the structuredness indices; ; defaults to 1/#number of structures

strucpars

the parameters for the structuredness indices

verbose

numeric value hat prints information on the fitting process; >2 is extremely verbose

type

How to construct the target function for the multi objective optimization? Either 'additive' (default) or 'multiplicative'

Value

A list with the components


[Package stops version 0.0-40 Index]