phi_init

matrix (n x k) of observed link loads over time

numeric vector (length k) of initial
  guesses for lambda

lambda0

power parameter in model of Cao et al. (2000)

Uses a crude estimator to get a starting point for phi in
  the model of Cao et al. (2000).

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.

phi_init: Simple initialization for phi in model of Cao et al. (2000)

Description

Usage

Arguments

Value

References

See Also