ExAtlas: Tool for analysis of gene expression data
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Description of ExAtlas

In contrast to other bioinformatics software, it compares multi-component data sets and generates results for all combinations (e.g., all gene expression profiles vs. all GO annotations). Main functions are: (1) statistical analysis of gene expression (ANOVA, PCA, FDR); (2) generating of heatmaps, scatter-plots, bar-plots, and 3-D images for PCA (requires VRML viewer); (3) gene set overlap; (4) gene set enrichment; (5) global correlations between gene expression data sets; (6) gene association (Expected Proportion of False Positives, EPFP); (7) standard meta-analysis (fixed and random effects, z-score, Fisher's method. Several public data sets (e.g., GNF, Gene Ontology, KEGG, GAD phenotypes) are pre-loaded and can be used for functional annotations.
HELP: A guide to ExAtlas.

To get an account, register here (free).
You can also log in as "guest" to have full functionality in one session.
The advantage of registration is that you can keep your data and results on the server.

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ExAtlas help and tutorial

How to cite ExAtlas: Sharov, A.A., Schlessinger, D., and Ko, M.S.H. 2015. Exatlas: An interactive online tool for meta-analysis of gene expression data. J. Bioinform. Comput. Biol., DOI: 10.1142/S0219720015500195.

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