Probability Plot Correlation Coefficient Plot - Definition

Definition

The PPCC plot is formed by:

That is, for a series of values of the shape parameter, the correlation coefficient is computed for the probability plot associated with a given value of the shape parameter. These correlation coefficients are plotted against their corresponding shape parameters. The maximum correlation coefficient corresponds to the optimal value of the shape parameter. For better precision, two iterations of the PPCC plot can be generated; the first is for finding the right neighborhood and the second is for fine tuning the estimate.

The PPCC plot is used first to find a good value of the shape parameter. The probability plot is then generated to find estimates of the location and scale parameters and in addition to provide a graphical assessment of the adequacy of the distributional fit.

The PPCC plot answers the following questions:

  1. What is the best-fit member within a distributional family?
  2. Does the best-fit member provide a good fit (in terms of generating a probability plot with a high correlation coefficient)?
  3. Does this distributional family provide a good fit compared to other distributions?
  4. How sensitive is the choice of the shape parameter?

Read more about this topic:  Probability Plot Correlation Coefficient Plot

Other articles related to "definition, definitions":

Sustainable Development - Definition
... Report, which included what is now one of the most widely recognised definitions "Sustainable development is development that meets the needs of the present without compromising the ability of future generations ... It offers an integrated vision and definition of strong sustainability ... It generates a more nuanced definition of sustainable development “the need to ensure a better quality of life for all, now and into the future, in a just and equitable manner, whilst living within the limits ...
Pashtun People - Pashtuns Defined
... These three definitions may be described as the ethno-linguistic definition, the religious-cultural definition, and the patrilineal definition, respectively ...
Definition of Dietary Fiber
... fiber was defined to be the components of plants that resist human digestive enzymes, a definition that includes lignin and polysaccharides ... The definition was later changed to also include resistant starches, along with inulin and other oligosaccharides ... Official definition of dietary fiber differs a little among different institutions Organization (reference) Definition Institute of Medicine Dietary fiber consists of nondigestible carbohydrates and ...
ESPN - High Definition
... ESPN launched its 720p high-definition simulcast, originally branded as ESPNHD, on March 20, 2001 ... studio shows, along with most live events on ESPN, use high definition ... Footage from non-HD sources is presented in a standard definition, 43 format with stylized pillarboxes ...
Definition - In Medicine
... In medical dictionaries, definitions should to the greatest extent possible be simple and easy to understand, preferably even by the general public useful clinically or in related areas where the ...

Famous quotes containing the word definition:

    No man, not even a doctor, ever gives any other definition of what a nurse should be than this—”devoted and obedient.” This definition would do just as well for a porter. It might even do for a horse. It would not do for a policeman.
    Florence Nightingale (1820–1910)

    It is very hard to give a just definition of love. The most we can say of it is this: that in the soul, it is a desire to rule; in the spirit, it is a sympathy; and in the body, it is but a hidden and subtle desire to possess—after many mysteries—what one loves.
    François, Duc De La Rochefoucauld (1613–1680)

    Mothers often are too easily intimidated by their children’s negative reactions...When the child cries or is unhappy, the mother reads this as meaning that she is a failure. This is why it is so important for a mother to know...that the process of growing up involves by definition things that her child is not going to like. Her job is not to create a bed of roses, but to help him learn how to pick his way through the thorns.
    Elaine Heffner (20th century)