NPflow (version 0.9.0)

evalClustLoss: ELoss of a partition point estimate compared to a gold standard

Description

Evaluate the loss of a point estimate of the partition compared to a gold standard according to a given loss function

Usage

evalClustLoss(c, gs, lossFn = "F-measure", a = 1, b = 1)

Arguments

c

vector of length n containing the estimated partition of the n observations.

gs

vector of length n containing the gold standard partition of the n observations.

lossFn

character string specifying the loss function to be used. Either "F-measure" or "Binder" (see Details). Default is "F-measure".

a

only relevant if lossFn is "Binder". Penalty for wrong coclustering in c compared to code{gs}. Defaults is 1.

b

only relevant if lossFn is "Binder". Penalty for missed coclustering in c compared to code{gs}. Defaults is 1.

Value

• the cost of the point estimate c in regard of the gold standard gs for a given loss function.

Details

The cost of a point estimate partition is calculated using either a pairwise coincidence loss function (Binder), or 1-Fmeasure (F-measure).

References

J.W. Lau & P.J. Green. Bayesian Model-Based Clustering Procedures, Journal of Computational and Graphical Statistics, 16(3): 526-558, 2007.

D. B. Dahl. Model-Based Clustering for Expression Data via a Dirichlet Process Mixture Model, in Bayesian Inference for Gene Expression and Proteomics, K.-A. Do, P. Muller, M. Vannucci (Eds.), Cambridge University Press, 2006.

See Also

similarityMat, cluster_est_binder