gamlss (version 4.2-4)

polyS: Auxiliary support for the GAMLSS

Description

These two functions are similar to the poly and polym in R. Are needed for the gamlss.lo function of GAMLSS and should not be used on their own.

Usage

polyS(x, ...)
poly.matrix(m, degree = 1)

Arguments

x

a variable

m

a variable

degree

the degree of the polynomial

...

for extra arguments

Value

• Returns a matrix of orthogonal polynomials

Warning

Not be use by the user

References

Rigby, R. A. and Stasinopoulos D. M. (2005). Generalized additive models for location, scale and shape,(with discussion), Appl. Statist., 54, part 3, pp 507-554. Stasinopoulos D. M., Rigby R.A. and Akantziliotou C. (2006) Instructions on how to use the GAMLSS package in R. Accompanying documentation in the current GAMLSS help files, (see also http://www.gamlss.org/). Stasinopoulos D. M. Rigby R.A. (2007) Generalized additive models for location scale and shape (GAMLSS) in R. Journal of Statistical Software, Vol. 23, Issue 7, Dec 2007, http://www.jstatsoft.org/v23/i07.

See Also

gamlss, gamlss.lo