On Thu, May 25, 2017 at 4:41 PM, Tao Ma <taoma@ucdavis.edu> wrote:
Hi,

I was trying to save my data in k(q). I set the k-range for fourier transform, and r-range for the inverse fourier transform, and was able to see the resultant k(q) figure in whatever k-range I want. But when I hit “save in k(q)”, in the generated file I could only get the data in a k-range of 0-8. Is there a way to get the data in a larger k-rang, e.g., 0-15? Thanks!

I believe Athena writes out chi(q) over the full k-range of the data.  It will /calculate/ chi(q) and show it out to much further than the data range.  Any value that chi(q)  may have past the original data range is not very useful.    Actually, chi(q) itself is not very useful.  

--Matt Newville