Nothing
leafsfirst.intpol<-function(dendat, f, rho=0, dist.type="euclid")
{
n<-dim(dendat)[1]
d<-dim(dendat)[2]
pcfhigh<-dendat+rho
pcfdown<-dendat-rho
distat<-f
lkm<-n
infopointer<-seq(1,lkm)
if (length(rho)==1) rho<-rep(rho,lkm)
# order the atoms for the level set with level "lev"
ord<-order(distat)
infopointer<-infopointer[ord]
# create tree
parent<-matrix(0,lkm,1)
child<-matrix(0,lkm,1)
sibling<-matrix(0,lkm,1)
volume<-matrix(0,lkm,1)
radius<-matrix(0,lkm,1)
number<-matrix(0,lkm,1)
atomlist<-matrix(0,lkm,lkm)
atomnumb<-matrix(0,lkm,1)
highestNext<-matrix(0,lkm,1) #pointers to the nodes without parent
boundrec<-matrix(0,lkm,2*d) #for each node, the box which bounds all the c:dren
node<-lkm #ord[lkm] #the 1st child node is the one with the longest distance
parent[node]<-0
child[node]<-0
sibling[node]<-0
# radius
radius[node]<-distat[ord[node]]
volume[node]<-1 #kappa*pi*rho[1]^2
number[node]<-1
atomlist[node,1]<-infopointer[node]
atomnumb[node]<-1
beg<-node #first without parent
highestNext[node]<-0
note<-infopointer[node] #note<-pcf$nodefinder[infopointer[node]]
for (i in 1:d){
boundrec[node,2*i-1]<-pcfdown[note,i]
boundrec[node,2*i]<-pcfhigh[note,i]
}
j<-2
while (j<=lkm){
node<-lkm-j+1 #ord[lkm-j+1]
# lisaa "node" ensimmaiseksi listaan
highestNext[node]<-beg #beg on listan tamanhetkinen ensimmainen
beg<-node
# add node-singleton to boundrec
rec1<-matrix(0,2*d,1) #luo sigleton
note<-infopointer[node] #note<-pcf$nodefinder[infopointer[node]]
for (i in 1:d){
rec1[2*i-1]<-pcfdown[note,i]
rec1[2*i]<-pcfhigh[note,i]
}
boundrec[node,]<-rec1
# radius
radius[node]<-distat[ord[node]]
volume[node]<-1 #kappa*pi*rho[infopointer[node]]^2
number[node]<-1
atomlist[node,1]<-infopointer[node]
atomnumb[node]<-1
curroot<-highestNext[beg] #node on 1., listassa ainakin 2
prevroot<-beg
ekatouch<-0
while (curroot>0){
#rhocur<-rho[infopointer[node]]
istouch<-touchstep.tail(node,curroot,boundrec,child,sibling,
infopointer,pcfdown,pcfhigh,rho,dendat,
dist.type=dist.type)
if (istouch==1){
# paivita parent, child, sibling, volume
parent[curroot]<-node
if (ekatouch==0) ekatouch<-1 else ekatouch<-0
if (ekatouch==1){
child[node]<-curroot
}
else{ # since ekatouch==0, prevroot>0
sibling[lastsib]<-curroot
}
number[node]<-number[node]+number[curroot]
volume[node]<-volume[node]+volume[curroot]
#kappa*number[node]*pi*rho[1]^2
atomlist[node,(atomnumb[node]+1):(atomnumb[node]+atomnumb[curroot])]<-atomlist[curroot,1:atomnumb[curroot]]
atomnumb[node]<-atomnumb[curroot]+atomnumb[node]
radius[node]<-min(distat[ord[node]],distat[ord[curroot]])
# attach box of curroot
rec1<-boundrec[node,]
rec2<-boundrec[curroot,]
boundrec[node,]<-boundbox(rec1,rec2)
# poista "curroot" listasta
highestNext[prevroot]<-highestNext[curroot]
}
# if curroot was not removed, we update prevroot
# else curroot was removed, we update lastsib
if (istouch==0) prevroot<-curroot else lastsib<-curroot
curroot<-highestNext[curroot]
}
j<-j+1
}
root<-1 #ord[1] #root is the barycenter
maxdis<-distat[ord[length(ord)]]
center<-t(dendat[infopointer,])
lf<-list(
parent=parent,volume=volume,center=center,level=radius,
root=root,
infopointer=infopointer,
maxdis=maxdis,
dendat=dendat,rho=rho,
atomlist=atomlist,atomnumb=atomnumb)
return(lf)
}
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