clusterEntropy: Calculation of per-cluster entropy

In andreamrau/coseq: Co-Expression Analysis of Sequencing Data

Description

Provides the calculation of per-cluster entropy, equivalent to

Entropy(k) = ∑_{i \in C_k} \log (τ_{ik})

where τ_{ik} is the conditional probability of gene i belonging to cluster k and C_k corresponds to the set of indices of genes attributed to cluster k.

Usage

clusterEntropy(probaPost)

Arguments

probaPost

Matrix containing the conditional probabilities of belonging to each cluster for all observations

Value

Entropy per cluster

Author(s)

Cathy Maugis-Rabusseau

Examples

## Generate artificial matrix of conditional probabilities for K=5 clusters
tmp <- matrix(runif(100*5), nrow=100, ncol=5)
probaPost <- tmp / rowSums(tmp)
clusterEntropy(probaPost)

andreamrau/coseq documentation built on July 25, 2021, 10:17 a.m.