NAME: 	Abdominal Circumferance Data (AC.DAT)
SIZE: 610 observations, 3 variables.

SOURCE: Hosmer, D.W and Royston, P.R. (2003)  "Using Fractional Polynomials 
        to Model Continuous Covariates in Regression Analysis".  


DESCRIPTIVE ABSTRACT:

The data in the file ac.dat are used in the example modeling abdominal 
circumference as a function of gestational age in weeks in the 
Hosmer & Lemshow source paper.


LIST OF VARIABLES:

Variable          Name           Description
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1                 ID             1-100
2                 GAWKS          Gestational Age in Weeks (independent)
3                 AC             Abdominal Circumference  (dependent)
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