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Table 1 Contingency matrix for the enrichment analysis of a 7-mer a

From: A chromatin code for alternative splicing involving a putative association between CTCF and HP1α proteins

Dataset More than expected Less than expected
S (sample) \( {\displaystyle \sum_{i\in S}{d}_{i,a}} \) \( N-{\displaystyle \sum_{i\in S}{d}_{i,a}} \)
S (0) (control) \( {\displaystyle \sum_{i\in {S}^{(0)}}{d^{(0)}}_{i,a}} \) \( {N}^{(0)}-{\displaystyle \sum_{i\in {S}^{(0)}}{d^{(0)}}_{i,a}} \)