+++ /dev/null
-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 box assisted sorting/ranking utilities
-c author T. Schreiber (1998) based on earlier versions
-c===========================================================================
- subroutine rank(nmax,x,list)
-c rank points in x
- parameter(nptr=100000)
- dimension x(nmax), list(nmax), jptr(0:nptr)
-
- call minmax(nmax,x,xmin,xmax)
- if(xmin.eq.xmax) then
- do 10 n=1,nmax
- 10 list(n)=n
- return
- endif
- nl=min(nptr,nmax/2)
- sc=(nl-1)/(xmax-xmin)
- do 20 i=0,nl
- 20 jptr(i)=0
- do 30 n=1,nmax
- xn=x(n)
- i=int((xn-xmin)*sc)
- ip=jptr(i)
- if ((ip.eq.0).or.(xn.le.x(ip))) then
- jptr(i)=n
- else
- 1 ipp=ip
- ip=list(ip)
- if ((ip.gt.0).and.(xn.gt.x(ip))) goto 1
- list(ipp)=n
- endif
- 30 list(n)=ip
- n=0
- do 40 i=0,nl
- ip=jptr(i)
- 2 if (ip.eq.0) goto 40
- n=n+1
- ipp=ip
- ip=list(ip)
- list(ipp)=n
- goto 2
-40 continue
- end
-
- subroutine indexx(nmax,x,list)
-c make index table using rank
- dimension x(nmax), list(nmax)
-
- call rank(nmax,x,list)
- call rank2index(nmax,list)
- end
-
- subroutine rank2index(nmax,list)
-c converts a list of ranks into an index table (or vice versa) in place
- integer list(nmax)
-
- do 10 n=1,nmax
- 10 list(n)=-list(n)
- do 20 n=1,nmax
- if(list(n).gt.0) goto 20 ! has been put in place already
- ib=n
- im=-list(n)
- 1 it=-list(im)
- list(im)=ib
- if(it.ne.n) then
- ib=im
- im=it
- goto 1
- else
- list(n)=im
- endif
- 20 continue
- end
-
- subroutine sort(nmax,x,list)
-c sort using rank and rank2sort
- dimension x(nmax), list(nmax)
-
- call rank(nmax,x,list)
- call rank2sort(nmax,x,list)
- end
-
- subroutine rank2sort(nmax,x,list)
-c sort x using list of ranks
- dimension x(nmax), list(nmax)
-
- do 10 n=1,nmax
- 10 list(n)=-list(n)
- do 20 n=1,nmax
- if(list(n).gt.0) goto 20 ! has been put in place already
- ib=n
- hb=x(n)
- 1 it=-list(ib)
- list(ib)=it
- ht=x(it)
- x(it)=hb
- if(it.ne.n) then
- ib=it
- hb=ht
- goto 1
- endif
- 20 continue
- end
-
- subroutine index2sort(nmax,x,list)
-c sort x using list of indices
- dimension x(nmax), list(nmax)
-
- do 10 n=1,nmax
- 10 list(n)=-list(n)
- do 20 n=1,nmax
- if(list(n).gt.0) goto 20 ! has been put in place already
- ib=n
- h=x(n)
- 1 it=-list(ib)
- list(ib)=it
- if(it.ne.n) then
- x(ib)=x(it)
- ib=it
- goto 1
- else
- x(ib)=h
- endif
- 20 continue
- end
-
- function which(nmax,x,k,list)
- dimension x(nmax), list(nmax)
-
- call indexx(nmax,x,list)
- which=x(list(k))
- end
-