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. 2004 Mar 16;2(3):e55. doi: 10.1371/journal.pbio.0020055

Table 2. Correlation Coefficients and Partial Correlation Coefficients for the Three Factors Gene Class (Duplicate or Singleton), CAI (in D. melanogaster), and K S (of Representative Pairs).

graphic file with name pbio.0020055.t002.jpg

Significance was tested for the direct and partial correlation coefficients using the statistics and , respectively, where n is the sample size, m is the number of variables held constant, and r is the rank correlation coefficient (Sokal and Rohlf 1995)

aFor this parameter, representative pairs were given a value of either 0 (for a singleton) or 1 (for a duplicate)

NS, nonsignificant; *, p = 0.05; **, p = 0.01; ***, p = 0.001