Hi, I have a microarray dataset from Agilent chips. The data were really log
ratio between test samples and a universal reference RNA. Because of the nature
of log ratios, coefficient of variation (CV) doesn't really apply to this kind
of data due to the fact that mean of log ratio is very close to 0. What kind of
measurements would people use to measure the dispersion so that I can compare
across genes on the chip to find stably expressed genes? something similar to
CV would be easily interpreted?
Thanks
John
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