Patent ID: 7010430

Claim:
A method for displaying gene expression data in comparing gene expression levels of a plurality of genes found in different Samples A, B, C, comprising: calculating a first ratio b/a of a gene expression level b of one of said plurality of genes for the Sample B with respect to a gene expression level a of said one of said plurality of genes for the Sample A for each of said plurality of genes in a first experiment; calculating a second ratio c/A of a gene expression level c of said one of said plurality of genes for the Sample C with respect to a gene expression level A of said one of said plurality of genes for the Sample A for said each of said plurality of genes in a second experiment; obtaining a dataset of gene expression levels for the Samples B, C, A expressed as (b/a, c/A, 1) for said each of said plurality of genes; calculating a first magnitude r of said dataset expressed as r =sqrt{((b/a) 2+ (c/A) 2 +1}; and displaying a mark of a first product of the first ratio and K/r, a second product of the second ratio and the K/r, and the K/r on a coordinate position with respect to x-, y- and z-axes on a surface of a sphere for said each of said plurality of genes, K being a radius of the sphere, to thereby compare gene expression levels of said plurality of genes found in the samples A, B, C.