Description Usage Arguments Details Value References
A novel combination-based method for gene set functional enrichment analysis.
1 |
resultmap |
The annotation matrix of enrichment analysis. Rows are genes and columns are categories. |
active_gene |
The input character active gene list. |
d |
A stochastic tolerance paramter to add randomness to CEA algorithm. |
times |
The repeated time of CEA algorithm. Positive integer variable. |
trace |
Logical variable indicated whether tracing information on the solving progress is produced. |
This function performs the CEA algorithm to perform the enrichment analysis. CEA is based on a multi-objective optimization problem, and the adapted IMPROVED GREEDY algorithm was used to approximatively solve the problem.
This function will return a list with the following components:
p.values |
The sorted Fisher's exact test p-values of the identified category sets. |
coverage |
The related coverage of the corresponding category set. |
category |
The identified category set corresponding to the sorted p-values. |
annotation |
The pre-processed original annotation matrix. |
Duanchen Sun, Yinliang Liu, Xiang-Sun Zhang, Ling-Yun Wu. CEA: Combination-based gene set functional enrichment analysis. Scientific Reports, 8:13085, 2018.
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