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Figure 9 | Genome Biology

Figure 9

From: Improving identification of differentially expressed genes in microarray studies using information from public databases

Figure 9

The progression of the variance estimate as the number of chips used in the estimation increases, for one realization of the chip ordering. After all the genes were sorted by their intensity level, one gene was selected from the middle of each quartile. As seen in each case, the variance calculated from many chips tends to converge as the number of chips grows. Generally, the variances seem to settle near their final values once 250-300 chips are gathered.

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