Re: searchforperiod
- To: mathgroup at smc.vnet.net
- Subject: [mg19777] Re: searchforperiod
- From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
- Date: Fri, 17 Sep 1999 01:36:37 -0400
- Organization: Universitaet Leipzig
- References: <7rnkao$elp@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Hi Andre, make an interpolation function, use the interpolation to sample on equal spaced times t_i and use the Fourier[] method. Hope that helps Jens > > Hello, > Is Mathematica able to solve the following kind of problem? > I have computed the time evolution of a certain quantity, say rmod, (the > details of the physical problem which leads to them are unimportant). > The results are contained in a list like this : SNIP SNAPP SNIPP SNAPP > The classical litterature generally deals with equally spaced abscissas. > Has somebody heard of a generalized algorithm? > Of course I could interpolate the function, rmod versus t, but the > accuracy of the period obtained in that way is ridicoulusly low compared > to the, say 50 figures, injected in the data. Thanks in advance.