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Gene Function Inference in Deletion Mutants 94. During the sampling period, BDrun will display the following messages:Sample = 100 of 3000 1573(405) 107000.3768Sample = 200 of 3000 1548 (398) 106874.0760…5. Once the decomposition is over, BDrun displays the following message:Random seed was 1141931207 = 106819.8192 = 1582.8897< F Atoms > = 405.1083log[e]Prob(Data) = 75983.9831Wrote: /home/ghbidaut/data/Rosetta_Dataset/Fr764_228.bdo.6. Two files have been generated by BDrun: Fr764_228.bdo and Fr764_228.gnm.The .bdo file contains the two matrices A and P along with their correspondinguncertainties. The .gnm file contains additional information that is not used here(a list of gene names used by the BDviewer program).7. It is then needed to create an appropriate sub directory to store the analysis result. Herethe layout is followed as detailed previously, and will name it “exp_05.” On MacOSX, the subdirectory can be created by menus, or by the following command line:$ mkdir exp_05.8. The analysis files have to be moved in sub directory created in the previous step.Drag and Drop is possible under MacOS X, or the following command line can beissued from a terminal in Linux or MacOS X.$ mv Fr764_228.bdo Fr764_228.gnm exp_5.9. Back to BDrun, the analysis can restart for six patterns this time, and repeat thesame procedure over again, by changing the “Number of Patterns” value from five tosix and click on the [run] button again. Once the decomposition is finished, thefiles Fr764_228.bdo and Fr764_228.gnm has to be moved to the 6_pat directory.This procedure is repeated for up to 20 patterns to obtain all the necessary data.3.3. Data Visualization and AnalysisClutrFree is a tool whose goal is to aid in pattern interpretation and visualizationthrough advanced visualization techniques and elaborated tree graphs(7). It features an algorithm for comparison of several experiments generated bythe variation of one or several parameters in a given clustering method. In thecontext of this study, the variable parameter is the number of patterns n inferredby BD, to allow estimation of the data dimensionality. Even though ClutrFreecan be used with any clustering algorithm, it is well suited to the exploration ofthe A and P matrices derived by BD. The pattern window is related to the Pmatrix and the gene window is related to the A matrix. The tree display permitsthe navigation across multiple clustering experiments and the visualization ofpatterns, stable and unstable, across the experiments. It is constructed by

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