In the parabolic fractal distribution, the logarithm of the frequency or size of entities in a population is a quadratic polynomial of the logarithm of the rank. This can markedly improve the fit over a simple power-law relationship (see external link below).

In a number of cases, there is a so-called King effect where the highest-ranked item has a significantly greater frequency or size than the model predicts on the basis of the other items.

See also

Zipf's law

External links

Distributions de type “fractal parabolique” dans la Nature (French, with English summary) (http://www.hubbertpeak.com/laherrere/fractal.htm)

Parabolic SAR is never moved within the range of the current or previous period (highest High to lowest Low over the 2 periods).

Parabolic SAR' is an indicator that is very useful during a trending period.

Parabolic SAR is called a reversal system that is used to decide stop point and to estimate when to reverse a position and trade in the opposite direction.

A probability distribution is a special case of the more general notion of a probability measure, which is a function that assigns probabilities satisfying the Kolmogorov axioms to the measurable sets of a measurable space.

The rectangular distribution is a uniform distribution on [-1/2,1/2].

The triangular distribution on [a, b], a special case of which is the distribution of the sum of two uniformly distributed random variables (the convolution of two uniform distributions).

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