Variation Filter Transformation Welcome Page

This wizard allows users to use a Variation Filter to filter out cases that do not provide interesting data, that is, to create a view that contains only the cases that provide interesting data. This wizard is designed specifically for the needs of the Life Sciences (bioinformatics and chemoinformatics). In these special situations, it is sometimes necessary to look for cases in which gene expressions or chemical reaction values exceed a certain ratio or difference.

For example, if the gene expression values for all genes in a given case are very similar, then that case doesn't provide interesting data. You are usually looking for cases in which the gene values for one or more genes jump outside a given range, indicating marker values.

This transformation filters multi-record data based on the max/min and/or max-min values of selected attributes.

The table that you wish to filter must be in Multi-record case format; for details, see Multi-Record Case Table Format.

The output of the wizard is described in Output.

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