Generalized modulus power transformations

Varghese T. George, Robert C. Elston

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


Several power transformations proposed in the past are examined to find out the type of distributions that they can normalize, and a general family of transformations, “the Generalized Modulus Power Transformation” (GEMPT), is proposed. The GEMPT will remove skewness and kurtosis and induce normality from a broad class of distributions, which we investigate, implying certain limitations for all power transformations. The use of GEMPT is illustrated and shown to lead to a better approximation to a normal distribution in an example in which the response is expected to follow a rectangular hyperbola.

Original languageEnglish (US)
Pages (from-to)2933-2952
Number of pages20
JournalCommunications in Statistics - Theory and Methods
Issue number9
StatePublished - Jan 1 1988
Externally publishedYes


  • Michaelis-Menten equation
  • bimodality
  • kinky distributions
  • kurtosis
  • normality
  • skewness

ASJC Scopus subject areas

  • Statistics and Probability


Dive into the research topics of 'Generalized modulus power transformations'. Together they form a unique fingerprint.

Cite this