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CubicSpline

cjc_runtime::interpolate

Struct CubicSpline 

Source 
pub struct CubicSpline {
    pub x: Vec<f64>,
    pub a: Vec<f64>,
    pub b: Vec<f64>,
    pub c: Vec<f64>,
    pub d: Vec<f64>,
}
Expand description

Natural cubic spline representation.

For each interval [x[i], x[i+1]] the spline is:

S_i(t) = a[i] + b[i]*t + c[i]*t^2 + d[i]*t^3

where t = x_query - x[i].

Fields§

§x: Vec<f64>

Knot positions (sorted, length n).

§a: Vec<f64>

Constant coefficients (= y values at knots), length n-1.

§b: Vec<f64>

Linear coefficients, length n-1.

§c: Vec<f64>

Quadratic coefficients, length n-1.

§d: Vec<f64>

Cubic coefficients, length n-1.

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