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. 2008 Aug 6;3(8):e2876. doi: 10.1371/journal.pone.0002876

Table 2. Given number of chambers C and counts H 1 and H 2 of the positive chambers in a digital array for the target gene and the reference gene, respectively, list of formulas needed to analyze copy number variation.

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1,Low =  1−1.96S 1, 1,High =  1+1.96S 1
2,Low =  2−1.96S 2, 2,High =  2+1.96S 2
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See the details in the paper for assumptions made so that these equations are close approximations to actual values.