
A comparison of s everal tools for ontological analysis 869
Tool Statistical model Correction for
multiple experi-
ments
GO Visualiza-
tion
Microarrays supported Time to
process
200 genes
(sec.)
Onto-
Express
χ2, binomial, hyperge-
ometric, Fisher’s e xact
test
ˇ
Sid´ak, Holm, Bonfer -
roni, False Discovery
Rate (FDR)
Flat, Tree 172 commercial arrays (Affymetrix, Su-
perArray, Sigma-Genonsys, Clon Tech,
PerkinElmer, Operon, Takara, NIA); can
also upload a user-defined list
7, 8, 16, 28
GoMiner Fisher’s exact test relative enrichment Tree, DAG uploads from user 77, 123,
223, 340
DAVID none none not available not applicabl e 15, 17, 27,
54
EASEonline Fisher’s exact test