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|
subroutine sigelm
c Copyright INRIA
c ================================== ( Inria ) =============
c basic signal processing routines
include '../stack.h'
c
double precision adelp,adels,fact,zzi(16),zzr(16),zpi(16),zpr(16)
double precision alpha,beta,u,y,eps,eps1,v
double precision kappa,lambda,mu,nu
integer ordre,lw,lt,li,lr,lo,lf,lg
integer i,top2
integer iadr,sadr
c
logical vect,arma
c
c functions
c
c 0 1 2 3 4 5 6 7 8 9
c 0 ffir fft fiir corr rpem amell delip remez syredi
c
iadr(l)=l+l-1
sadr(l)=(l/2)+1
c
if (ddt .eq. 4) then
write(buf(1:4),'(i4)') fin
call basout(io,wte,' sigelm '//buf(1:4))
endif
c
lbot=lstk(bot)
goto(10,20,30,40,50,60,70,80,90)fin
c
c filtres a reponse impulsionnelle finie c
10 continue
c
return
c
c fft : transformee de fourier rapide
c ---
c
20 continue
if(rhs.ne.1.and.rhs.ne.2.and.rhs.ne.4) then
call error(39)
return
endif
ierr=0
vect=.false.
lbot=lstk(bot)
top2=top-rhs+1
il=iadr(lstk(top2))
if(istk(il).ne.1) then
call funnam(ids(1,pt+1),'fft',iadr(lstk(top2)))
fun=-1
return
endif
m=istk(il+1)
n=istk(il+2)
mn=m*n
it=istk(il+3)
lr=sadr(il+4)
vect=m.eq.1.or.n.eq.1
if(rhs.ge.4) goto 22
c
c fft
c
if(mn.le.1) then
top=top-rhs+1
return
endif
if(rhs.eq.2) then
il1=iadr(lstk(top))
if(istk(il1).ne.1) then
err=2
call error(53)
return
endif
l1=sadr(il1+4)
isn=nint(stk(l1))
if(isn.ne.1.and.isn.ne.-1) then
err=2
call error(36)
return
endif
top=top-1
else
c . fft(a) is equivalent to fft(a,-1)
isn=-1
endif
li=lr+mn
libre=li+mn
lw=lbot-libre-1
err=libre-lstk(bot)
if(err.gt.0) then
call error(17)
return
endif
if(it.eq.0) then
c . create imaginary part and set it to zero
call dset(mn,0.0d+0,stk(li),1)
istk(il+3)=1
endif
if(vect) then
c . fft of a vector
mn2=2**int(log(dble(mn)+0.5d0)/log(2.0d+0))
if(mn2.eq.mn) then
if(mn.le.2**15) then
call fft842(isn,mn,stk(lr),stk(li),ierr)
c . ierr should be always 0
else
call dfft2(stk(lr),stk(li),1,mn,1,isn,ierr,stk(libre),lw)
endif
else
call dfft2(stk(lr),stk(li),1,mn,1,isn,ierr,stk(libre),lw)
endif
else
c . 2 dimensionnal fft
call dfft2(stk(lr),stk(li),n,m,1,isn,ierr,stk(libre),lw)
if(ierr.lt.0) goto 21
call dfft2(stk(lr),stk(li),1,n,m,isn,ierr,stk(libre),lw)
endif
21 if(ierr.lt.0) then
buf='fft fails by lack of memory'
call error(999)
return
endif
lstk(top+1)=li+mn
return
c n dimensional fft
22 continue
il1=iadr(lstk(top2+1))
if(istk(il1).ne.1) then
err=2
call error(53)
return
endif
l1=sadr(il1+4)
isn=nint(stk(l1))
if(isn.ne.1.and.isn.ne.-1) then
err=2
call error(36)
return
endif
ilinc=iadr(lstk(top))
if (istk(ilinc).ne.1) then
err=4
call error(53)
return
endif
linc=sadr(ilinc+4)
nspn=int(stk(linc))
if (nspn.eq.0) then
err=4
call error(36)
return
endif
top=top-1
iln=iadr(lstk(top))
ln=sadr(iln+4)
n=int(stk(ln))
li=lr+mn
err=li-lstk(bot)
if(err.gt.0) then
call error(17)
return
endif
if(it.eq.0) then
err=li+mn-lstk(bot)
if(err.gt.0) then
call error(17)
return
endif
call dset(mn,0.0d+0,stk(li),1)
istk(il+3)=1
endif
libre=li+mn
lw=lbot-libre-1
nseg=mn/n/nspn
call dfft2(stk(lr),stk(li),nseg,n,nspn,isn,ierr,stk(libre),lw)
top=top2
lstk(top+1)=li+mn
return
c ========================================
c
30 continue
c
c
return
40 continue
call scicorr("corr")
return
c
50 continue
arma=.false.
top2=top-rhs+1
il=iadr(lstk(top2))
if(istk(il).ne.15) then
err=1
call error(56)
return
endif
if(istk(il+1).ne.5) then
err=1
call error(89)
return
endif
il7=il+7
ilt=il7+istk(il+2)
lt=sadr(ilt+4)
lp=lt+istk(il+3)-istk(il+2)
ilp=sadr(lp)-4
ll=lp+istk(il+4)-istk(il+3)
ill=sadr(ll)-4
lphi=ll+istk(il+5)-istk(il+4)
ilphi=sadr(lphi)-4
lpsi=lphi+istk(il+6)-istk(il+5)
ilpsi=sadr(ilphi)-4
top2=top2+1
ilu=iadr(lstk(top2))
mnu=istk(ilu+1)*istk(ilu+2)
if(mnu.le.1) arma=.true.
lu=sadr(ilu+4)
top2=top2+1
ily=iadr(lstk(top2))
ly=sadr(ily+4)
mny=istk(ily+1)*istk(ily+2)
if(mnu.ne.mny) then
call error(60)
return
endif
if(top2.eq.top) then
llam=lstk(top+1)
stk(llam)=0.950d+0
stk(llam+1)=0.990d+0
stk(llam+2)=0.010d+0
lk=llam+3
stk(lk)=0.00d+0
stk(lk+1)=0. 980d+0
stk(lk+2)=0.020d+0
lc=lk+3
stk(lc)=1000.0d+0
goto 55
endif
top2=top2+1
illam=iadr(lstk(top2))
llam=sadr(illam+4)
if(top2.eq.top) then
lk=lstk(top+1)
stk(lk)=0.00d+0
stk(lk+1)=0.980d+0
stk(lk+2)=0.020d+0
lc=lk+3
stk(lc)=1000.0d+0
goto 55
endif
top2=top2+1
ilk=iadr(lstk(top2))
lk=sadr(ilk+4)
if(top2.eq.top) then
lc=lk+3
stk(lc)=1000.0d+0
goto 55
endif
top2=top2+1
ilc=iadr(lstk(top2))
lc=sadr(ilc+4)
ilk=iadr(lstk(top2-1))
lk=sadr(ilk+4)
illam=iadr(lstk(top2-2))
llam=sadr(illam+4)
55 continue
mnt=istk(ilt+1)*istk(ilt+2)
ordre=mnt/3
lf=lc+1+2*ordre
lg=lf+mnt
lsta=lg+mnt
lwork=lsta+1+ordre
lmax=lwork+1
err=lmax-lstk(bot)
if(err.gt.0) then
call error(17)
return
endif
lambda=stk(llam)
alpha=stk(llam+1)
beta=stk(llam+2)
kappa=stk(lk)
mu=stk(lk+1)
nu=stk(lk+2)
do 52 k=1,mny-1
y=stk(ly+k)
u=stk(lu+k-1)
call rpem(stk(lt),stk(lp),ordre,u,y,lambda,
1 kappa,stk(lc),ista,v,eps,eps1,mnt,
2 stk(lphi),stk(lpsi),stk(lsta),stk(lwork),
3 stk(lf),stk(lg),stk(ll))
lambda=alpha*lambda+beta
kappa=mu*kappa+nu
52 continue
if (lhs.eq.1) then
top=top-rhs+1
return
endif
if(lhs.eq.2) then
top=top-rhs+2
istk(ilu)=1
istk(ilu+1)=1
istk(ilu+2)=1
istk(ilu+3)=0
stk(lu)=v
lstk(top+1)=lu+1
return
endif
return
60 continue
c
c amell: calculation of the jacobi's elliptic function am(u,k)
if(rhs.ne.2) then
call error(39)
return
endif
c
il=iadr(lstk(top))
itv=istk(il)
m=istk(il+1)
n=istk(il+2)
it=istk(il+3)
l1=sadr(il+4)
if(stk(l1).lt.0.or.stk(l1).gt.1)then
err=rhs
call error(36)
return
endif
il=iadr(lstk(top-1))
itv=istk(il)
m=istk(il+1)
n=istk(il+2)
length=m*n
it=istk(il+3)
l=sadr(il+4)
lw=lstk(top+1)
err=lw+length-lstk(bot)
if(err.gt.0)then
call error(17)
return
endif
call amell(stk(l),stk(l1),stk(lw),length)
call unsfdcopy(length,stk(lw),1,stk(l),1)
top=top-1
lstk(top+1)=l+length
return
c
c delip
c -----
c
70 continue
if(rhs.ne.2.or.lhs.ne.1) then
call error(39)
return
endif
il1=iadr(lstk(top))
itv1=istk(il1)
if(itv1.ne.1) then
err=2
call error(53)
return
endif
m1=istk(il1+1)
n1=istk(il1+2)
if(m1*n1.ne.1) then
err=2
call error(89)
return
endif
it1=istk(il1+3)
l1=sadr(il1+4)
il2=iadr(lstk(top-1))
itv2=istk(il2)
if(itv2.ne.1) then
err=1
call error(53)
return
endif
m2=istk(il2+1)
n2=istk(il2+2)
length=m2*n2
it2=istk(il2+3)
l2=sadr(il2+4)
lw=lstk(top+1)
err=lw+2*length-lstk(bot)
if(err.gt.0)then
call error(17)
return
endif
call delip(length,stk(lw),stk(lw+length),stk(l2),stk(l1))
top=top-1
istk(il2)=1
istk(il2+1)=m2
istk(il2+2)=n2
istk(il2+3)=1
call unsfdcopy(length,stk(lw),1,stk(l2),1)
call unsfdcopy(length,stk(lw+length),1,stk(l2+length),1)
lstk(top+1)=l2+2*length
return
80 continue
c
c remez goes here
c
il1=iadr(lstk(top))
itv1=istk(il1)
m1=istk(il1+1)
n1=istk(il1+2)
ngrid=m1*n1
it1=istk(il1+3)
l1=sadr(il1+4)
call simple(ngrid,stk(l1),stk(l1))
il2=iadr(lstk(top-1))
itv2=istk(il2)
m2=istk(il2+1)
n2=istk(il2+2)
it2=istk(il2+3)
l2=sadr(il2+4)
call simple(ngrid,stk(l2),stk(l2))
il3=iadr(lstk(top-2))
itv3=istk(il3)
m3=istk(il3+1)
n3=istk(il3+2)
it3=istk(il3+3)
l3=sadr(il3+4)
call simple(ngrid,stk(l3),stk(l3))
il4=iadr(lstk(top-3))
itv4=istk(il4)
m4=istk(il4+1)
n4=istk(il4+2)
nc=m4*n4-2
it4=istk(il4+3)
l4=sadr(il4+4)
ir4=il4+4
call entier(nc+2,stk(l4),stk(l4))
lw=lstk(top+1)
err=lw+7*(nc+2)-lstk(bot)
if(err.gt.0)then
call error(17)
return
endif
lw1=lw+nc+2
lw2=lw1+nc+2
lw3=lw2+nc+2
lw4=lw3+nc+2
lw5=lw4+nc+2
lw6=lw5+nc+2
call remez(ngrid,nc,stk(l4),stk(lw1),stk(lw2),stk(lw3),
* stk(l3),stk(l2),stk(l1),stk(lw4),
* stk(lw5),stk(lw6),stk(lw))
top=top-3
ilo=iadr(lstk(top))
istk(ilo)=1
istk(ilo+1)=1
istk(ilo+2)=nc+1
istk(ilo+3)=0
lo=sadr(ilo+4)
call unsfdcopy(nc+1,stk(lw),1,stk(lo),1)
lstk(top+1)=lo+nc+1
return
90 continue
c
c syredi goes here
c
il1=iadr(lstk(top))
itv1=istk(il1)
m1=istk(il1+1)
n1=istk(il1+2)
it1=istk(il1+3)
l1=sadr(il1+4)
adels=stk(l1)
il2=iadr(lstk(top-1))
itv2=istk(il2)
m2=istk(il2+1)
n2=istk(il2+2)
it2=istk(il2+3)
l2=sadr(il2+4)
adelp=stk(l2)
il3=iadr(lstk(top-2))
itv3=istk(il3)
m3=istk(il3+1)
n3=istk(il3+2)
it3=istk(il3+3)
l3=sadr(il3+4)
il4=iadr(lstk(top-3))
itv4=istk(il4)
m4=istk(il4+1)
n4=istk(il4+2)
it4=istk(il4+3)
l4=sadr(il4+4)
c call entier(1,stk(l4),stk(l4))
iapro=stk(l4)
il5=iadr(lstk(top-4))
itv5=istk(il5)
m5=istk(il5+1)
n5=istk(il5+2)
it5=istk(il5+3)
l5=sadr(il5+4)
c call entier(1,stk(l5),stk(l5))
ityp=stk(l5)
lw1=lstk(top+1)
lw2=lw1+32
lw3=lw2+32
lw4=lw3+32
lw5=lw4+32
lw6=lw5+32
lw7=lw6+64
lw8=lw7+64
lw9=lw8+64
lw10=lw9+64
lw11=lw10+64
lw12=lw11+64
lw13=lw12+64
lw14=lw13+64
lw15=lw14+256
lw16=lw15+256
lw17=lw16+16
lw18=lw17+64
lw19=lw18+64
err=lw19-lstk(bot)
if(err.gt.0)then
call error(17)
return
endif
maxdeg=64
call syredi(maxdeg,ityp,iapro,stk(l3),adelp,adels,
* ndeg,nb,
* fact,stk(lw1),stk(lw2),stk(lw3),stk(lw4),stk(lw5),
* stk(lw6),stk(lw7),stk(lw8),stk(lw9),
* ierr,stk(lw10),stk(lw11),stk(lw12),stk(lw13),
* stk(lw14),stk(lw15),stk(lw16),stk(lw17),stk(lw18))
c subroutine syredi(maxdeg,ityp,iapro,om,adelp,adels,
c * ndeg,nb,
c * fact,b2,b1,b0,c1,c0,
c * zzr,zzi,zpr,zpi,
c * ierr,spr,spi,pren,pimn,
c * zm,sm,rom,nzero,nze)
c
c nb=(maxdeg+1)/2
c dimension b2,b1,b0,c1,c0 :nb
c dimension zzr,zzi,zpr,zpi,spr,spi :maxdeg
c dimension pren,pimn,nzero,nze :maxdeg
c dimension zm,sm :maxdeg x 4
if(ierr.eq.-7) then
buf='specs=>invalid order filter'
call error(9999)
return
endif
if(ierr.eq.-9) then
buf='specs=>too high order filter'
call error(9999)
return
endif
if(ierr.ne.0)then
buf='error in built in fct syredi'
call error(9999)
return
endif
top=top-4
c fact
ilo=iadr(lstk(top))
istk(ilo)=1
istk(ilo+1)=1
istk(ilo+2)=1
length=istk(ilo+1)*istk(ilo+2)
istk(ilo+3)=0
lo=sadr(ilo+4)
stk(lo)=fact
lstk(top+1)=lo+length
c b2
top=top+1
ilo=iadr(lstk(top))
istk(ilo)=1
istk(ilo+1)=1
istk(ilo+2)=nb
length=istk(ilo+1)*istk(ilo+2)
istk(ilo+3)=0
lo=sadr(ilo+4)
call unsfdcopy(length,stk(lw1),1,stk(lo),1)
lstk(top+1)=lo+length
c b1
top=top+1
ilo=iadr(lstk(top))
istk(ilo)=1
istk(ilo+1)=1
istk(ilo+2)=nb
length=istk(ilo+1)*istk(ilo+2)
istk(ilo+3)=0
lo=sadr(ilo+4)
call unsfdcopy(length,stk(lw2),1,stk(lo),1)
lstk(top+1)=lo+length
c b0
top=top+1
ilo=iadr(lstk(top))
istk(ilo)=1
istk(ilo+1)=1
istk(ilo+2)=nb
length=istk(ilo+1)*istk(ilo+2)
istk(ilo+3)=0
lo=sadr(ilo+4)
call unsfdcopy(length,stk(lw3),1,stk(lo),1)
lstk(top+1)=lo+length
c c1
top=top+1
ilo=iadr(lstk(top))
istk(ilo)=1
istk(ilo+1)=1
istk(ilo+2)=nb
length=istk(ilo+1)*istk(ilo+2)
istk(ilo+3)=0
lo=sadr(ilo+4)
call unsfdcopy(length,stk(lw4),1,stk(lo),1)
lstk(top+1)=lo+length
c c0
top=top+1
ilo=iadr(lstk(top))
istk(ilo)=1
istk(ilo+1)=1
istk(ilo+2)=nb
length=istk(ilo+1)*istk(ilo+2)
istk(ilo+3)=0
lo=sadr(ilo+4)
call unsfdcopy(length,stk(lw5),1,stk(lo),1)
lstk(top+1)=lo+length
c zeros
j=0
i=0
1001 if(j.ge.ndeg) goto 1002
if(stk(lw7+i).eq.0.0d0)then
j=j+1
zzr(j)=stk(lw6+i)
zzi(j)=0.0d0
else
j=j+1
zzr(j)=stk(lw6+i)
zzi(j)=stk(lw7+i)
j=j+1
zzr(j)=stk(lw6+i)
zzi(j)=-stk(lw7+i)
endif
i=i+1
goto 1001
c poles
c if(j.lt.ndeg)then
c do 1003 i=j+1,ndeg
c zzr(i)=0.d0
c zzi(i)=0.d0
c 1003 continue
c endif
1002 top=top+1
ilo=iadr(lstk(top))
istk(ilo)=1
istk(ilo+1)=1
istk(ilo+2)=ndeg
length=istk(ilo+1)*istk(ilo+2)
istk(ilo+3)=1
lo=sadr(ilo+4)
call unsfdcopy(length,zzr(1),1,stk(lo),1)
call unsfdcopy(length,zzi(1),1,stk(lo+length),1)
lstk(top+1)=lo+2*length
c poles
k=0
i=0
1004 if(k.ge.ndeg) goto 1005
if(stk(lw9+i).eq.0.0d0)then
k=k+1
zpr(k)=stk(lw8+i)
zpi(k)=0.0d0
else
k=k+1
zpr(k)=stk(lw8+i)
zpi(k)=stk(lw9+i)
k=k+1
zpr(k)=stk(lw8+i)
zpi(k)=-stk(lw9+i)
endif
i=i+1
goto 1004
c if(k.lt.ndeg)then
c do 1005 i=k+1,ndeg
c zpr(i)=0.0d0
c zpi(i)=0.0d0
c 1005 continue
c endif
1005 top=top+1
ilo=iadr(lstk(top))
istk(ilo)=1
istk(ilo+1)=1
istk(ilo+2)=ndeg
length=istk(ilo+1)*istk(ilo+2)
istk(ilo+3)=1
lo=sadr(ilo+4)
call unsfdcopy(length,zpr(1),1,stk(lo),1)
call unsfdcopy(length,zpi(1),1,stk(lo+length),1)
lstk(top+1)=lo+2*length
return
end
subroutine scicorr(fname)
c implicit undefined (a-z)
include '../stack.h'
character*(*) fname
logical checkrhs,getrmat,getsmat,getscalar
logical cremat,getexternal,getmat
integer m1,n1,lr1,m2,n2,lr2,lr,top2, iadr,sadr
integer topk,topw,gettype
double precision yyy
c
logical fort,type
integer fini,update
c
external dgetx,dgety,setdgetx,setdgety
external bgetx,bgety
character*(nlgh+1) namex,namey
common / corrname / namex,namey
common / corradr / kgxtop,kgytop,ksec,kisc
common / corrtyp / itxcorr,itycorr
common/ iercorr /iero
c
data fini/15/,update/30/
iadr(l)=l+l-1
sadr(l)=(l/2)+1
c calcul de correlations
iero=0
topk=top
topw=top+1
top2=top-rhs+1
il1=iadr(lstk(top2))
if(istk(il1).eq.10) then
ich=il1+5+istk(il1+1)*istk(il1+2)
ich=istk(ich)
if(ich.eq.fini) goto 41
if(ich.eq.update) goto 42
endif
C usual case [cov,mean]=corr(x,[y],nlags)
C ------------------------------------------
if (.not.checkrhs(fname,2,3)) return
C getting nlags (last argument)
if(.not.getscalar(fname,topk,top,lr))return
lag=int(stk(lr))
if (.not.cremat(fname,topk+1,0,1,lag,lcxy,lc)) return
if (.not.cremat(fname,topk+2,0,1,2,lrxy,lc)) return
if(rhs.eq.3) then
top=top-1
if (.not.getrmat(fname,topk,top,m2,n2,lr2)) return
ny= m2*n2
top=top-1
if (.not.getrmat(fname,topk,top,m1,n1,lr1)) return
nx= m1*n1
if(nx.ne.ny) then
call error(60)
return
endif
endif
if(rhs.eq.2) then
top=top-1
if (.not.getrmat(fname,topk,top,m1,n1,lr1)) return
nx= m1*n1
lr2=lr1
endif
call tscccf(stk(lr1),stk(lr2),nx,stk(lcxy),stk(lrxy),
$ lag,ierr)
if(ierr.eq.-1) then
buf='too many coefficients are required'
call error(999)
return
endif
top=topk-rhs+1
call copyobj(fname,topk+1,top)
if(lhs.eq.2) then
top=top+1
if (.not.cremat(fname,top,0,1,rhs-1,lr,lc)) return
call unsfdcopy(rhs-1,stk(lrxy),1,stk(lr),1)
endif
return
C ----------------------
C Special case using fft
C [cov,mean]=corr('fft',xmacro,[ymacro],n,sect)
C ----------------------
41 continue
c methode de la fft
if (.not.checkrhs(fname,4,5)) return
c -------last argument (sect)
if(.not.getscalar(fname,topk,top,lr))return
lag=int(stk(lr))
mm=2*lag
c --------total size
kntop=top-1
if(.not.getscalar(fname,topk,kntop,lr))return
n=int(stk(lr))
c -------external for xmacro
kgxtop= top-rhs+2
itxcorr=gettype(kgxtop)
if (.not.getexternal(fname,topk,kgxtop,namex,fort,
$ setdgetx)) return
mode=2
c -------external for ymacro
if(rhs.eq.5) then
kgytop= top-rhs+3
itycorr=gettype(kgytop)
if (.not.getexternal(fname,topk,kgytop,namey,type,
$ setdgety)) return
if( type.neqv.fort) then
err=3
call error(55)
return
endif
mode=3
endif
c Working areas
if (.not.cremat(fname,top+1,0,1,mm,lxa,lc)) return
if (.not.cremat(fname,top+2,0,1,mm,lxr,lc)) return
if (.not.cremat(fname,top+3,0,1,mm,lxi,lc)) return
if (.not.cremat(fname,top+4,0,1,sadr(mm),lzr,lc)) return
if (.not.cremat(fname,top+5,0,1,sadr(mm),lzi,lc)) return
top=top+6
ksec=top
if (.not.cremat(fname,ksec,0,1,1,lr,lc))return
kisc=top+1
if (.not.cremat(fname,kisc,0,1,1,lr,lc))return
if(fort) then
call cmpse2(mm,n,mode,dgetx,dgety,stk(lxa),stk(lxr),
1 stk(lxi),stk(lzr),stk(lzi),ierr)
if(ierr.gt.0) then
buf='fft call : needs power of two!'
call error(999)
return
endif
else
call cmpse2(mm,n,mode,bgetx,bgety,stk(lxa),stk(lxr),
1 stk(lxi),stk(lzr),stk(lzi),ierr)
if(ierr.gt.0) then
buf='fft call : needs a power of 2'
call error(999)
return
endif
endif
top=topk-rhs+1
if (.not.cremat(fname,top,0,1,lag,lr,lc)) return
call unsfdcopy(lag,stk(lxa),1,stk(lr),1)
if(lhs.eq.1) return
top=top+1
if (.not.cremat(fname,top,0,1,rhs-3,lr,lc)) return
call unsfdcopy(rhs-3,stk(lxr),1,stk(lr),1)
return
42 continue
C ------------------------
C special case with Updates
C [w,xu]=corr('updt',x1,[y1],w0) etc....
ichaud=0
mode=0
c -------------x1 value
top2=top2+1
if (.not.getrmat(fname,topk,top2,mx,nx,lx)) return
mnx=mx*nx
c --------------y1 value or w0
top2=top2+1
if (.not.getmat(fname,topk,top2,it,my,ny,ly,lyc)) return
mny=ny*my
if(mny.eq.mnx) then
mode=1
if ( it.eq.1) then
buf= fname // ' y1 should be a real matrix'
call error(999)
return
endif
endif
c --------------third or second argument
if(mode.eq.1) top2=top2+1
if (.not.getmat(fname,topk,top2,it,mz,nz,lzr,lzi)) return
mfft=mz*nz
C if w0 is real we add space for storing an imag part
if (it.eq.0) then
if (.not.cremat(fname,topw,0,1,mfft,lzi,lc)) return
topw=topw+1
call dset(mfft,0.d0,stk(lzi),1)
endif
if(mode.eq.1.and.rhs.eq.5) ichaud=1
if(mode.eq.0.and.rhs.eq.4) ichaud=1
c -----------last argument + working areas
if (.not.cremat(fname,topw,1,1,mfft,lwr,lwi)) return
call dset(2*mfft,0.d0,stk(lwr),1)
if(ichaud.eq.1) then
top2=top2+1
if (.not.getmat(fname,topk,top2,it,mx0,nx0,
$ lxr,lxi)) return
nbx=mx0*nx0
if ( nbx.gt.mfft) then
buf = fname // 'last argument has wrong size '
call error(999)
return
endif
call unsfdcopy(nbx,stk(lxr),1,stk(lwr),1)
endif
C ---------calling the function
if(mode.eq.1) then
call cmpse3(mfft,mnx,mode,stk(lx),stk(ly),stk(lwr),stk(lwi),
1 stk(lzr),stk(lzi),ierr,ichaud,nbx)
endif
if(mode.eq.0) then
call cmpse3(mfft,mnx,mode,stk(lx),yyy,stk(lwr),stk(lwi),
1 stk(lzr),stk(lzi),ierr,ichaud,nbx)
endif
C ---------back to Scilab
if(ierr.gt.0) then
buf='fft call: needs a power of 2'
call error(999)
return
endif
if (lhs.eq.2) then
C keep this in a safe place before the copy for lhs1
call unsfdcopy(nbx,stk(lx+mnx-nbx),1,stk(lwr),1)
endif
if(lhs.ge.1) then
top=topk-rhs+1
if (.not.cremat(fname,top,1,mz,nz,lres,lresi)) return
call unsfdcopy(mfft,stk(lzr),1,stk(lres),1)
call unsfdcopy(mfft,stk(lzi),1,stk(lresi),1)
endif
if(lhs.eq.2) then
top=top+1
if (.not.cremat(fname,top,0,1,nbx,lres,lresi)) return
call unsfdcopy(nbx,stk(lwr),1,stk(lres),1)
endif
return
end
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