We should update the sections on polynomial expansions with this technique. See:
-
Royston, P., G. Ambler, and W. Sauerbrei. 1999. “The Use of Fractional Polynomials to Model Continuous Risk Variables in Epidemiology.” International Journal of Epidemiology 28 (5): 964–74.
-
Royston, Patrick, and Douglas G. Altman. 1994. “Regression Using Fractional Polynomials of Continuous Covariates: Parsimonious Parametric Modelling.” Journal of the Royal Statistical Society. Series C, Applied Statistics 43 (3): 429.
-
———. 1997. “Approximating Statistical Functions by Using Fractional Polynomial Regression.” Journal of the Royal Statistical Society: Series D (The Statistician) 46 (3): 411–22.
-
Sauerbrei, W., and P. Royston. n.d. “Building Multivariable Prognostic and Diagnostic Models: Transformation of the Predictors by Using Fractional Polynomials.”
We should update the sections on polynomial expansions with this technique. See:
Royston, P., G. Ambler, and W. Sauerbrei. 1999. “The Use of Fractional Polynomials to Model Continuous Risk Variables in Epidemiology.” International Journal of Epidemiology 28 (5): 964–74.
Royston, Patrick, and Douglas G. Altman. 1994. “Regression Using Fractional Polynomials of Continuous Covariates: Parsimonious Parametric Modelling.” Journal of the Royal Statistical Society. Series C, Applied Statistics 43 (3): 429.
———. 1997. “Approximating Statistical Functions by Using Fractional Polynomial Regression.” Journal of the Royal Statistical Society: Series D (The Statistician) 46 (3): 411–22.
Sauerbrei, W., and P. Royston. n.d. “Building Multivariable Prognostic and Diagnostic Models: Transformation of the Predictors by Using Fractional Polynomials.”