Unix/Linux Go Back    

RedHat 9 (Linux i386) - man page for pdl::linpred (redhat section 3)

Linux & Unix Commands - Search Man Pages
Man Page or Keyword Search:   man
Select Man Page Set:       apropos Keyword Search (sections above)

LinPred(3)		       User Contributed Perl Documentation		       LinPred(3)

       PDL::Filter::LinPred - Linear predictive filtering

	       $a = new PDL::Filter::LinPred(
		       {NLags => 10,
			LagInterval => 2,
			LagsBehind => 2,
			Data => $dat});

	       ($pd,$corrslic) = $a->predict($dat);

       A filter by doing linear prediction: tries to predict the next value in a data stream as
       accurately as possible. The filtered data is the predicted value. The parameters are

       NLags   Number of time lags used for prediction

	       How many points each lag should be

	       If, for some strange reason, you wish to predict not the next but the one after
	       that (i.e. usually f(t) is predicted from f(t-1) and f(t-2) etc., but with LagsBe-
	       hind => 2, f(t) is predicted from f(t-2) and f(t-3)).

       Data    The input data, which may contain other dimensions past the first (time).  The
	       extraneous dimensions are assumed to represent epochs so the data is just concate-

	       As an alternative to Data, you can just give the temporal autocorrelation func-

       Smooth  Don't do prediction or filtering but smoothing.

       The method predict gives a prediction for some data plus a corresponding slice of the
       data, if evaluated in list context. This slice is given so that you may, if you wish, eas-
       ily plot them atop each other.

       The rest of the documentation is under lazy evaluation.

       Copyright (C) Tuomas J. Lukka 1997.  All rights reserved. There is no warranty. You are
       allowed to redistribute this software / documentation under certain conditions. For
       details, see the file COPYING in the PDL distribution. If this file is separated from the
       PDL distribution, the copyright notice should be included in the file.

perl v5.8.0				    2000-05-23				       LinPred(3)
Unix & Linux Commands & Man Pages : ©2000 - 2018 Unix and Linux Forums

All times are GMT -4. The time now is 06:58 AM.