Mac binaries

[jabaws.git] / website / archive / binaries / mac / src / disembl / Tisean_3.0.1 / source_f / ar-run.f

diff --git a/website/archive/binaries/mac/src/disembl/Tisean_3.0.1/source_f/ar-run.f b/website/archive/binaries/mac/src/disembl/Tisean_3.0.1/source_f/ar-run.f
new file mode 100644 (file)
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+++ b/website/archive/binaries/mac/src/disembl/Tisean_3.0.1/source_f/ar-run.f
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+c===========================================================================
+c
+c   This file is part of TISEAN
+c 
+c   Copyright (c) 1998-2007 Rainer Hegger, Holger Kantz, Thomas Schreiber
+c 
+c   TISEAN is free software; you can redistribute it and/or modify
+c   it under the terms of the GNU General Public License as published by
+c   the Free Software Foundation; either version 2 of the License, or
+c   (at your option) any later version.
+c
+c   TISEAN is distributed in the hope that it will be useful,
+c   but WITHOUT ANY WARRANTY; without even the implied warranty of
+c   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+c   GNU General Public License for more details.
+c
+c   You should have received a copy of the GNU General Public License
+c   along with TISEAN; if not, write to the Free Software
+c   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+c
+c===========================================================================
+c   ar-run.f
+c   iterate AR model, e.g. as fitted by ar-model (Dresden)
+c   author T. Schreiber (1999)
+c===========================================================================
+
+      parameter(npmax=100)
+      character*72 file, fout, fline
+      dimension x(-npmax:npmax), a(npmax)
+      external rand
+      data np/npmax/, ntrans/10000/, iuni/0/
+      data iverb/1/
+
+      call whatido("iterate AR model, e.g. as fitted by ar-model",iverb)
+      np=ican("p",np)
+      if(np.gt.npmax) stop "ar-run: make npmax larger."
+      nmax=imust('l')
+      ntrans=ican("x",ntrans)
+      if(lopt("u",1).eq.1) iuni=1
+      r=rand(sqrt(abs(fcan("I",0.0))))
+      isout=igetout(fout,iverb)
+
+      do 10 n=1,npmax
+         x(-n)=0.
+ 10      x(n)=0.
+      call nthstring(1,file)
+      call infile(file,iunit,iverb)
+      read(iunit,'(a)') fline
+      if(fline(1:1).eq."#") then
+         read(fline(18:72),'(f20.0)',err=999) var
+         do 20 j=1,np
+            read(iunit,'(a1,f20.0)',err=999) fline(1:1), a(j)
+ 20         if(fline(1:1).ne."#") goto 1
+      else
+         read(fline(1:72),'(f20.0)',err=999) var
+         do 30 j=1,np
+ 30         read(iunit,'(f20.0)',err=999,end=1) a(j)
+      endif
+ 1    np=j-1
+      if(iv_echo(iverb).eq.1) then
+         write(istderr(),*) 'coefficients:      ', (a(i),i=1,np)
+         write(istderr(),*) 'driving amplitude: ', var
+      endif
+      if(isout.eq.1) fout="ar.dat"
+      call outfile(fout,iunit,iverb)
+      n=-ntrans
+ 2    n=n+1
+      nn=mod(n+ntrans,np)+1
+      xx=rgauss(0.0,var)
+      do 40 j=1,np
+ 40      xx=xx+a(j)*x(nn-j)
+      x(nn)=xx
+      x(nn-np)=xx
+      if(n.lt.1) goto 2
+      write(iunit,*) xx
+      if(nmax.eq.0.or.n.lt.nmax) goto 2
+      stop
+
+ 999  write(istderr(),'(a)') "wrong input format! try:"
+      write(istderr(),'(a)') "(rms of increments)"
+      write(istderr(),'(a)') "a(1)"
+      write(istderr(),'(a)') "a(2)"
+      write(istderr(),'(a)') "..."
+      end
+
+      subroutine usage()
+c usage message
+
+      call whatineed(
+     .   "-l# [-p# -I# -o outfile -x# -V# -h] file")
+      call popt("l","number of iterations (l=0: infinite)")
+      call popt("p","order of AR-model (default determined from input)")
+      call popt("I","seed for random numbers")
+      call popt("x","number of transients discarded (10000)")
+      call pout("ar.dat")
+      call pall()
+      stop
+      end
+