Table 2

Distance measures between two expression profiles. Two expression profiles x = (x1, ..., xn, y = (y1, ..., yn) have medians m(x), m(y) and the means

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,

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. The arithmetic relationship between the measures is as following:

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,

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and E(x', y') = d(x, y) where

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,

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, and

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= log2 (x/m(x)) and

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,

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,

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defined similarly.

Distance Measures

Definition

Correlation

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Cosine correlation

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Euclidian distance

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New distance measure

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Kim et al. BMC Bioinformatics 2006 7:44   doi:10.1186/1471-2105-7-44

Open Data