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Figure 4 | BMC Genomics

Figure 4

From: Improving the statistical detection of regulated genes from microarray data using intensity-based variance estimation

Figure 4

Comparison of pooled standard deviation curves using I avg or I min pooling metrics. The pooling algorithms are applied to a noisy three-array subset of Dataset 4. (a) Measured (σM, gray) and pooled (σM'(Iavg), black) standard deviation of M, plotted against Iavg. For spots with σM' > σM, the average residual error is 0.45; for spots with σM' < σM, the average residual error is 0.49. (b) Measured (σM, gray) and pooled (σM'(Imin), black) standard deviation of M, plotted against Imin. For spots with σM' > σM, the average residual error is 0.24; for spots with σM' < σM, the average residual error is 0.23.

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