The Math Forum

Search All of the Math Forum:

Views expressed in these public forums are not endorsed by NCTM or The Math Forum.

Math Forum » Discussions » Inactive » comp.soft-sys.math.mathematica

Notice: We are no longer accepting new posts, but the forums will continue to be readable.

Topic: correlation function
Replies: 3   Last Post: Nov 19, 2012 5:04 PM

Advanced Search

Back to Topic List Back to Topic List Jump to Tree View Jump to Tree View   Messages: [ Previous | Next ]
Nasser Abbasi

Posts: 6,677
Registered: 2/7/05
Re: correlation function
Posted: Nov 19, 2012 5:04 PM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

On 11/18/2012 4:21 PM, jure lapajne wrote:
> Why can I see the answer on my email, but not here?
> Anyway, I tried your code. I only changed data and the code does not return vector
> of zeros. Here are my data:

Becuase many times I send a post to this newsgroup and it never shows up.
This is not the first time.

[Sometimes, news servers fail to send out a message. When you see this
happen send me an email about it - moderator]

Here it is again. I am using version 8.0.4

Date: Sun, 18 Nov 2012 04:31:35 -0600
From: "Nasser M. Abbasi" <>
Newsgroups: comp.soft-sys.math.mathematica
CC: jure lapajne <>

data = Table[RandomReal[], {10}];
parms = FourierParameters -> {1, -1};
fft = Fourier[data, parms];
res1 = Chop[fft*Conjugate[fft]];
res2 = Chop[Fourier[ListCorrelate[data, data, {1, 1}], parms]];
Chop[res1 - res2]

Out[38]= {0,0,0,0,0,0,0,0,0,0}


Point your RSS reader here for a feed of the latest messages in this topic.

[Privacy Policy] [Terms of Use]

© The Math Forum at NCTM 1994-2018. All Rights Reserved.