First mitcr data.frame or a list with data.frames.
.beta
Second mitcr data.frame or NULL if .alpha is a list.
.by
Which column use to merge. See "Details".
Value
Value of the normalised log assymetry measure for the given data.frames.
Details
Merge two data frames by the given column and compute
value Sum(Log((Percentage for shared clone S from alpha) / (Percentage for shared clone S from beta))) / (# of shared clones).