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Chapter 2 - University of British Columbia

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Figure 2.5. Consensus calling and heterogeneous array analysis. (a) Consensus calling<br />

using multiple algorithms. Multiple algorithms (and different parameters) can be selected to<br />

analyze a given array CGH sample and this can be defined for each array platform<br />

independently as each platform may have exhibit different noise and ratio response<br />

characteristics. (b) Heterogeneous array analysis using data from multiple array CGH<br />

platforms. Sample from the Agilent 244K, Affymetrix SNP 500K and whole genome BAC array<br />

were segmented to define areas <strong>of</strong> gain and loss. Subsequently, the results were aggregated<br />

into a frequency histogram plot showing the common areas <strong>of</strong> gain and loss across the three<br />

samples.<br />

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