[Ifeffit] Re: sigma squared

[Matt Newville]

Hi Scott, 

You could try looking through the Ifeffit buffer to see how it
is generating the window function.  That would at least tell
you what it is doing, if not necessarily why.

When doing multiple data sets with different FT parameters for
different data sets, it's not obvious which set is the right 
one to show in the plot.  Bruce is forced to guess....

--Matt