interpol1D_arr Subroutine

  1. fidasim.f90
  2. libfida
  3. interpol1D_arr

public subroutine interpol1D_arr(x, y, xout, yout, err, coeffs)

Performs linear interpolation on a uniform 1D grid y(x)

Arguments

Type IntentOptional AttributesName
real(kind=Float64), intent(in), dimension(:):: x

The abscissa values of y
real(kind=Float64), intent(in), dimension(:):: y

Values at abscissa values x: y(x)
real(kind=Float64), intent(in) :: xout

Abscissa value to interpolate
real(kind=Float64), intent(out) :: yout

Interpolant: y(xout)
integer, intent(out), optional :: err

Error code
type(InterpolCoeffs1D), intent(in), optional :: coeffs

Precomputed Linear Interpolation Coefficients

Calls

proc~~interpol1d_arr~~CallsGraph proc~interpol1d_arr interpol1D_arr interface~interpol_coeff interpol_coeff proc~interpol1d_arr->interface~interpol_coeff proc~interpol2d_coeff interpol2D_coeff interface~interpol_coeff->proc~interpol2d_coeff proc~interpol1d_coeff interpol1D_coeff interface~interpol_coeff->proc~interpol1d_coeff proc~interpol2d_coeff_arr interpol2D_coeff_arr interface~interpol_coeff->proc~interpol2d_coeff_arr proc~interpol1d_coeff_arr interpol1D_coeff_arr interface~interpol_coeff->proc~interpol1d_coeff_arr proc~interpol2d_coeff_arr->proc~interpol2d_coeff proc~interpol1d_coeff_arr->proc~interpol1d_coeff

Called by

proc~~interpol1d_arr~~CalledByGraph proc~interpol1d_arr interpol1D_arr interface~interpol interpol interface~interpol->proc~interpol1d_arr proc~get_distribution get_distribution proc~get_distribution->interface~interpol proc~get_ep_denf get_ep_denf proc~get_ep_denf->interface~interpol proc~mc_fastion mc_fastion proc~mc_fastion->proc~get_distribution proc~fida_weights_mc fida_weights_mc proc~fida_weights_mc->proc~get_ep_denf proc~fida_f fida_f proc~fida_f->proc~mc_fastion proc~npa_f npa_f proc~npa_f->proc~mc_fastion program~fidasim fidasim program~fidasim->proc~fida_weights_mc program~fidasim->proc~fida_f program~fidasim->proc~npa_f

Contents

Source Code

interpol1D_arr

Source Code

subroutine interpol1D_arr(x, y, xout, yout, err, coeffs)
    !+ Performs linear interpolation on a uniform 1D grid y(x)
    real(Float64), dimension(:), intent(in)      :: x
        !+ The abscissa values of `y`
    real(Float64), dimension(:), intent(in)      :: y
        !+ Values at abscissa values `x`: y(x)
    real(Float64), intent(in)                    :: xout
        !+ Abscissa value to interpolate
    real(Float64), intent(out)                   :: yout
        !+ Interpolant: y(xout)
    integer, intent(out), optional               :: err
        !+ Error code
    type(InterpolCoeffs1D), intent(in), optional :: coeffs
        !+ Precomputed Linear Interpolation Coefficients

    type(InterpolCoeffs1D) :: c
    integer :: i, err_status

    err_status = 1
    if(present(coeffs)) then
        c = coeffs
        err_status = 0
    else
        call interpol_coeff(x,xout,c,err_status)
    endif

    if(err_status.eq.0) then
        i = c%i
        yout = c%b1*y(i) + c%b2*y(i+1)
    else
        yout = 0.d0
    endif

    if(present(err)) err = err_status

end subroutine interpol1D_arr