Histogram of A) untransformed growth (dbh increment) and B) growth
transformed by
the power 0.45. Vertical red lines are at the mean and 3 standard
deviations above the mean. In panel B, the leftmost bar, near 0,
includes the 6 trees with exactly 0 growth; in panel A, the leftmost bar
includes the zeroes plus those at g = 0.2. Data are from Q.
ellipsoidalis, using growth from census 6 to 11, including stems ≥ 10
but < 20 cm dbh.