9.45 window()

Description

Generate an XAFS Fourier Transform window, without actually doing the Fourier transform.

Input Program Variables

kmin, kmax, dk1,dk2,kweight, $kwindow and rmax_out.

Keywords/Values

Keyword	Variable	Default	Description
1real			array for Re[$\chi$(k)].
imag			array for Im[$\chi$(k)].
k			array of k data
group	$group		group name for output arrays
kmin	kmin	0	kmin FT parameter
kmax	kmax	0	kmax FT parameter
dk1	dk1		FT parameter
dk2	dk2		FT parameter
dk			sets both dk1 and dk2
kweight	kweight		k-weight FT parameter
kwindow	$kwindow		FT window function
altwindow			array for alternate FT window.

Output Program Variables

kmin, kmax, dk1, dk2, kweight, and rmax_out will be set on output.

The array $GROUP.win will contain the k-space window array, W(k).

Notes

See Appendix B.

Examples

 
    Iff> window(real=my.chi, kmin = 1.0, kmax =16.0, 
              dk=1.0, kweight=2., kwindow= 'hanning' )

See also

fftf()(Section 9.13), fftr()(Section 9.14), Appendix B.