TSDFT(1)							      TSDFT(1)



NAME
       tsdft - Discrete Fourier Transform (power spectrum) of a time series

SYNOPSIS
       tsdft [-l] [-s] [-v] [filename]

DESCRIPTION
       Tsdft  is for taking the Discrete Fourier Transform (power spectrum) of
       a time series.

       The input file structure is a text file consisting of records, in  tem-
       poral  order,  one  record  per	time series sample.  Blank records are
       ignored, and comment records are signified by a '#'  character  as  the
       first  non  white space character in the record. Data records must con-
       tain at least one field, which is the data value of the sample, but may
       contain	many fields-if the record contains many fields, then the first
       field is regarded as the sample's time, and the last field as the  sam-
       ple's value at that time.

       Note:  the  algorithm used in this program is a modified version of the
       program dft.c, written and Copyright 1985 Nicholas B. Tufillaro.

OPTIONS
       -l     Log-log output of spectrum.

       -s     Square the output instead of producing power spectrum.

       -v     Print the version and copyright banner of the program.

       filename
	      Input filename.

WARNINGS
       There is little or no provision for handling numerical exceptions.

SEE ALSO
       tsderivative(1),  tshcalc(1),  tshurst(1),   tsintegrate(1),   tslogre-
       turns(1),  tslsq(1),  tsnormal(1),  tsshannon(1),  tsblack(1), tsbrown-
       ian(1), tsdlogistic(1), tsfBm(1), tsfractional(1), tsgaussian(1), tsin-
       tegers(1), tslogistic(1), tspink(1), tsunfairfractional(1), tswhite(1),
       tscoin(1),   tsunfairbrownian(1),    tsfraction(1),    tsshannonmax(1),
       tschangewager(1),    tssample(1),   tsrms(1),   tscoins(1),   tsavg(1),
       tsXsquared(1), tsstockwager(1), tsshannonwindow(1),  tsmath(1),	tsavg-
       window(1),   tspole(1),	tsdft(1),  tsbinomial(1),  tsdeterministic(1),
       tsnumber(1),    tsrmswindow(1),	   tsshannonstock(1),	  tsmarket(1),
       tsstock(1), tsstatest(1), tsunfraction(1), tsshannonaggregate(1), tsin-
       stant(1),  tsshannonvolume(1),  tsstocks(1),   tsshannonfundamental(1),
       tstrade(1),   tstradesim(1),  tsrunlength(1),  tsunshannon(1),  tsroot-
       mean(1), tsrunmagnitude(1), tskurtosis(1), tskurtosiswindow(1), tsroot-
       meanscale(1),	tsscalederivative(1),	 tsgain(1),    tsgainwindow(1)
       tscauchy(1), tslognormal(1), tskalman(1), tsroot(1), tslaplacian(1)

DIAGNOSTICS
       Error messages for incompatible arguments, failure to allocate  memory,
       inaccessible files, and opening and closing files.

AUTHORS
       ----------------------------------------------------------------------

       A license is hereby granted to reproduce this software source code and
       to create executable versions from this source code for personal,
       non-commercial use.  The copyright notice included with the software
       must be maintained in all copies produced.

       THIS PROGRAM IS PROVIDED "AS IS". THE AUTHOR PROVIDES NO WARRANTIES
       WHATSOEVER, EXPRESSED OR IMPLIED, INCLUDING WARRANTIES OF
       MERCHANTABILITY, TITLE, OR FITNESS FOR ANY PARTICULAR PURPOSE.  THE
       AUTHOR DOES NOT WARRANT THAT USE OF THIS PROGRAM DOES NOT INFRINGE THE
       INTELLECTUAL PROPERTY RIGHTS OF ANY THIRD PARTY IN ANY COUNTRY.

       Copyright (c) 1994-2006, John Conover, All Rights Reserved.

       Comments and/or bug reports should be addressed to:

	   john@email.johncon.com (John Conover)

       Note: the algorithm used in this program is a modified version of the
       program dft.c, written and Copyright 1985 Nicholas B. Tufillaro.

       ----------------------------------------------------------------------



			       January 17, 2006 		      TSDFT(1)