faststress: Fast Stress Function

In fmds: Multidimensional Scaling Development Kit

Fast Stress Function

Description

faststress calculates value for normalized stress with different input parameters. Distances d are optimally scaled.

Usage

faststress(
  lower = NULL,
  delta = NULL,
  data = NULL,
  w = NULL,
  z = NULL,
  d = NULL
)

Arguments

lower	an n x (n - 1 ) / 2 vector containing lower triangular part of dissimilarity matrix.
delta	an n by n square hollow matrix containing dissimilarities.
data	an n by m multivariate data matrix.
w	an identical sized matrix containing non-negative weights (all ones when omitted).
z	n by p matrix with coordinates.
d	distances between the rows of z, an n by n square hollow matrix containing Euclidean distances.

Value

n.stress normalized stress value

Author(s)

Frank M.T.A. Busing

fmds documentation built on June 8, 2025, 1:34 p.m.