random_probability: Random probability

In diogocamacho/druid: Drug Indication Discoverer

Description

This function computes the cosine similarity between the set of randomized gene sets and the pathway tf-idf matrix. It calls the cosine_similarity function and returns the probability of a given cosine similarity being random.

Usage

random_probability(similarity_results, gs_size, num_sets, target_tfidf,
  tfidf_crossprod_mat)

Arguments

similarity_results	Vector of cosine similarities
gs_size	Size of the query set
num_sets	Number of random sets to generate
target_tfidf	Pathway tf-idf matrix.
tfidf_crossprod_mat	Cross-product matrix for pathway tf-idf.

Value

A vector of random probabilities for each pathway given the gene set size.

diogocamacho/druid documentation built on Sept. 17, 2020, 12:39 p.m.