A colleague is looking at the relative amounts of two different types
of fatty acids (say, fatty acids A and B) that are incorporated in two
different types of tissues. He is comparing the ratio of A:B in the
two tissues but the data are heteroscedastic.....he has tried
several transformations but nothing is stabilizing the variance. Is
there a transformation that is specifically for ratios (the ratios range
from 1:5 to 5:1)? Thanks a lot.
Jeff
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