R: Simpl orthogonal polynomials

poly_orth {PolynomF} | R Documentation

## Simpl orthogonal polynomials

### Description

Generate a list of polynomials up to a specified degree, orthogonal with respect to the natural inner product on a discrete, finite set of x-values with equal weights.

### Usage

    poly_orth(x, degree = length(unique(x)) - 1, norm = TRUE)

    poly.orth(...)

### Arguments

`x` | A numeric vector
`degree` | The desired maximum degree
`norm` | Logical: should polynomials be normalised to length one?
`...` | Arguments passed on to the non-deprecated function.

### Value

A list of orthogonal polynomials as a polylist object

### Examples

    x <- c(0:3, 5)
    P <- poly_orth(x)
    plot(P, lty = "solid")
    Pf <- as.function(P)
    zap(crossprod(Pf(x)))

[Package PolynomF version 2.0-2 Index]