vardi.iteration

numeric vector of mean link loads (length m)

yBar

lambda

B matrix computed by
  <code><a rd-options="" href="/link/vardi.compute.BS?package=networkTomography&version=0.3" data-mini-rdoc="networkTomography::vardi.compute.BS">vardi.compute.BS</a></code>

S matrix computed by
  <code><a rd-options="" href="/link/vardi.compute.BS?package=networkTomography&version=0.3" data-mini-rdoc="networkTomography::vardi.compute.BS">vardi.compute.BS</a></code>


Function to compute B and S matrices for moment equations
of Vardi's method (1996). It's not particularly efficient,
but it works.


multivariate

models

networkTomography implements the methods developed and evaluated in
Blocker and Airoldi (2011) and Airoldi and Blocker (2012). These include the
authors' own dynamic multilevel model with calibration based upon a Gaussian
state-space model in addition to implementations of the methods of Tebaldi &
West (1998; Poisson-Gamma model with MCMC sampling), Zhang et al. (2002;
tomogravity), Cao et al. (2000; Gaussian model with mean-variance relation),
and Vardi (1996; method of moments). Data from the 1router network of Cao et
al. (2000), the Abilene network of Fang et al. (2007), and the CMU network
of Blocker and Airoldi (2011) are included for testing and reproducibility.

vardi.iteration: Execute single iteration for algorithm of Vardi (1996)

Description

Usage

Arguments

Value

References

See Also