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networkTomography (version 0.3)

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

Description

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

Usage

vardi.iteration(A, yBar, lambda, B, S)

Arguments

A
routing matrix (m x k)
yBar
numeric vector of mean link loads (length m)
lambda
value of lambda from last iteration
B
B matrix computed by vardi.compute.BS
S
S matrix computed by vardi.compute.BS

Value

numeric vector of length k with updated lambda

References

Y. Vardi. Network tomography: estimating source-destination traffic intensities from link data. Journal of the American Statistical Association, 91:365-377, 1996.

See Also

Other vardi: vardi.algorithm; vardi.compute.BS