Alternatives
There are many other possible variance-stabilizing transformations for the Poisson distribution. Bar-Lev and Enis report a family of such transformations which includes the Anscombe transform. Another member of the family is the Freeman–Tukey transformation
A simplified transformation is
which, while it is not quite so good at stabilizing the variance, has the advantage of being more easily understood.
Read more about this topic: Anscombe Transform
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