Comprehensive analysis of correlation coefficients estimated from pooling heterogeneous microarray data

BMC Bioinformatics

Table 2 Statistical summaries of biases of correlation coefficients

	Min.	1st Qu.	Median	3rdQu.	Max.
B(r_xy)	0.022	0.078	0.099	0.132	0.308
$B ({\bar{r}}_{xy})$	0.021	0.062	0.072	0.083	0.153
$B (r_{xy}^{*})$	0.019	0.049	0.057	0.067	0.141
$B ({\bar{r}}_{xy}^{*})$	0.018	0.049	0.057	0.065	0.132

B(r_xy) - bias of the Pearson correlation coefficients estimated directly from the large expression matrix; $B ({\bar{r}}_{xy})$ - bias of the average of correlations between expression profiles within i = 1,19 groups; B(rxy ∗) - bias of the Pearson correlation coefficients estimated directly from the pooled residuals; $B ({\bar{r}}_{xy}^{*})$ - bias of the average of correlations between expression residuals within i = 1,19 groups.

ISSN: 1471-2105