Dew.Stats.TDeriveProc Type

Defines derivatives of function.

  public delegate void TDeriveProc(TRegressFun RegressFun, double X, double Y, TVec Pars, TVec Grad)

Remarks

The type describes the procedure for calculating the derivatives of a regression function RegressFun with respect to the regression parameters (B array), evaluated at (X,Y).

Related Topics

TRegressFun

C# Example

An example of regression function and it's derivatives with respect to regression parameters:

private void SimplexParabolaDeriv(Dew.Stats.TRegresFun RegressFun, double x, double y,
  TVec Pars, TVec Grad);
{
  Grad.Values[0] = x*x;
  Grad.Values[1] = x;
  Grad.Values[2] = 1.0;
}