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new_cy3
2004 Dec 13
0
about vsn
Hello sir:
As to the "variance stabilization" method which is applied in the "vsn"package under R environment,here's a question about the ratio of the 2 channels:
After applying vsn,we can get new_cy5 and new_cy3 intensity according to the original cy5 and cy3 intensity respectively. And the new_cy5 new_cy3 are similar with ln(intensity).
But how can I calculate the ratio=cy5/cy3 ?
If the new_cy5 and new_cy3 is log2(intensity),the ratio equals to 2^(log2cy5-log2cy3),but as to vsn,how to get t...