DPlot Forum Index DPlot
http://www.dplot.com
 
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

FFT

 
Post new topic   Reply to topic    DPlot Forum Index -> Suggestions/Questions
View previous topic :: View next topic  
Author Message
dcrizer



Joined: 03 Dec 2008
Posts: 1
PostPosted: Wed Dec 03, 2008 10:12 am    Post subject: FFT Reply with quote
I see that the basic command to do an FFT only works when you have evenly spaced data. I was curious if there were any other functions that allow you to take an FFT of unevenly spaced data.
Back to top
View user's profile Send private message
DPlotAdmin
Site Admin


Joined: 24 Jun 2003
Posts: 2310
Location: Vicksburg, Mississippi
PostPosted: Wed Dec 03, 2008 10:57 am    Post subject: Reply with quote
No, sorry. The FFT routines used by DPlot don't use your X values at all - a constant spacing (typically some time step) is inferred. All FFT algorithms I'm aware of work the same way, operating only on the amplitudes and assuming a constant spacing.
_________________
Visualize Your Data
support@dplot.com
Back to top
View user's profile Send private message Send e-mail Visit poster's website
Display posts from previous:   
Post new topic   Reply to topic    DPlot Forum Index -> Suggestions/Questions All times are GMT - 5 Hours
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Powered by phpBB © 2001, 2005 phpBB Group