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":

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 ...
Sustainable Development - Definition
... 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 to meet their own needs ... 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 ...
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 ...
ESPN - High Definition
... ESPN launched its 720p high-definition simulcast, originally branded as ESPNHD, on March 20, 2001 ... Live studio shows, along with most live events on ESPN, use high definition ... from non-HD sources is presented in a standard definition, 43 format with stylized pillarboxes ...

Famous quotes containing the word definition:

    It’s a rare parent who can see his or her child clearly and objectively. At a school board meeting I attended . . . the only definition of a gifted child on which everyone in the audience could agree was “mine.”
    Jane Adams (20th century)

    ... we all know the wag’s definition of a philanthropist: a man whose charity increases directly as the square of the distance.
    George Eliot [Mary Ann (or Marian)

    Perhaps the best definition of progress would be the continuing efforts of men and women to narrow the gap between the convenience of the powers that be and the unwritten charter.
    Nadine Gordimer (b. 1923)