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ffcgnn.h
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#include <iostream>
#include <cstdlib>
#include <fstream>
#include <math.h>
#include <cstring>
#include <time.h>
#define IA 16807
#define IM 2147483647
#define AM (1.0/IM)
#define IQ 127773
#define IR 2836
#define NTAB 32
#define NDIV (1+(IM-1)/NTAB)
#define EPS 1.2e-7
#define RNMX (1.0-EPS)
#define MAXBND 1.0e3
using namespace std;
double global_error;
long SEED=-1;
/*double myrand()
{
//srand((unsigned)rand());
return((0.5-(double)rand()/32767.00));
}*/
double myrand(long *idum)
{
int j;
long k;
static long iy=0;
static long iv[NTAB];
double temp;
if (*idum<=0 || !iy)
{
if (-(*idum)<1)
*idum=1;
else
*idum=-(*idum);
for (j=NTAB+7;j>=0;j--)
{
k=(*idum)/IQ;
*idum=IA*(*idum-k*IQ)-IR*k;
if (*idum < 0)
*idum+=IM;
if (j < NTAB)
iv[j]=*idum;
}
iy=iv[0];
}
k=(*idum)/IQ;
*idum=IA*(*idum-k*IQ)-IR*k;
if (*idum < 0)
*idum+=IM;
j=iy/NDIV;
iy=iv[j];
iv[j]=*idum;
if ((temp=AM*iy) > RNMX)
return (0.5-RNMX);
else
return (0.5-temp);
}
int LOCMIN_CRIT=50;
int ITER_MAX=10000;
class network
{
private:
int no_input,no_hidden,no_output,datlen;
float **inpvec,*hidbias,*h_output,*o_output,**target,**wih,**who;
float err,noiserr,lineps,step;
float LVAL,HVAL,NF;
float *maxop,*minop,*perr;
float *dat_wgts;
float *hidbias_best,**wih_best,**who_best;
int no_hidden_best;
float low_ge;
public:
network() {} //parameterless constructor
void init_arch(int n1,int n2,float det,int num)
{
float temp;
no_input=n1;
no_output=n2;
datlen=num;
temp=(float)(det*n2*(datlen-1))/((float)(n1+n2+1));
if (temp>1)
no_hidden=temp;
else
no_hidden=1;
// cout<<no_hidden<<endl;
init();
}
network(int n1,int n2,float det,char fname[10])
{
float temp;
no_input=n1;
no_output=n2;
fdatlen(fname);
// cout<<no_input<<" "<<no_output<<" "<<datlen<<endl;
temp=(float)(det*n2*(datlen-1))/((float)(n1+n2+1));
if (temp>1)
no_hidden=temp;
else
no_hidden=1;
assign(fname);
init();
}
void init()
{
int i,j;
// cout<<"hi"<<endl;
hidbias=(float *)malloc(no_hidden*sizeof(float));
h_output=(float *)malloc(no_hidden*sizeof(float));
o_output=(float *)malloc(no_output*sizeof(float));
//dynamic allocation and random initialisation of weighting functions
wih=(float **)malloc(no_input*sizeof(float *));
for(i=0;i<no_input;i++)
wih[i]=(float *)malloc(no_hidden*sizeof(float));
who=(float **)malloc(no_hidden*sizeof(float *));
for(i=0;i<no_hidden;i++)
who[i]=(float *)malloc(no_output*sizeof(float));
/* srand((unsigned)time(NULL));
SEED=-rand();*/
for(i=0;i<no_input;i++)
for(j=0;j<no_hidden;j++)
{
wih[i][j]=myrand(&SEED);
// cout<<wih[i][j]<<endl;
}
for(i=0;i<no_hidden;i++)
for(j=0;j<no_output;j++)
{
who[i][j]=myrand(&SEED);
// cout<<who[i][j]<<endl;
}
for (j=0;j<no_hidden;j++)
hidbias[j]=myrand(&SEED);
}
void noise()
{
int i,j;
for (i=0;i<no_input;i++)
for(j=0;j<no_hidden;j++)
wih[i][j]=myrand(&SEED);
for (i=0;i<no_hidden;i++)
for(j=0;j<no_output;j++)
who[i][j]=myrand(&SEED);
for (j=0;j<no_hidden;j++)
hidbias[j]=myrand(&SEED) ;
}
void fdatlen(char fname[20])
{
ifstream inp1;
ofstream oup;
oup.open("..lenfin");
oup<<"wc -l "<<fname<<">..temp";
oup<<endl;
oup.close();
//This thing has to be substituted with a more elegant method
system("sh ..lenfin");
inp1.open("..temp");
inp1>>datlen;
// datlen=datlen+1;//Temporary for the unix command
inp1.close();
system("rm ..temp");
system("rm ..lenfin");
}
void assign(char fname[20])
{
int i,j;
ifstream inp;
inp.open(fname);
inpvec=(float **)malloc(datlen*sizeof(float *));
for (i=0;i<datlen;i++)
{
inpvec[i]=(float *)malloc(no_input*sizeof(float));
}
target=(float **)malloc(datlen*sizeof(float *));
for (i=0;i<datlen;i++)
{
target[i]=(float *)malloc(no_output*sizeof(float));
}
for (i=0;i<datlen;i++)
{
for (j=0;j<no_input;j++)
inp>>inpvec[i][j];
for (j=0;j<no_output;j++)
inp>>target[i][j];
}
dat_wgts=(float *)malloc(datlen*sizeof(float));
perr=(float *)malloc(datlen*sizeof(float));
for (i=0;i<datlen;i++)
dat_wgts[i]=1.00;
/* for (i=0;i<datlen;i++)
{
for (j=0;j<no_input;j++)
cout<<inpvec[i][j]<<" ";
for (j=0;j<no_output;j++)
cout<<target[i][j]<<endl;
}*/
inp.close();
}
void addhid()
{
no_hidden+=1;
int i,j;
h_output=(float *)realloc(h_output,no_hidden*sizeof(float));
//dynamic allocation and random initialisation of weighting functions
for(i=0;i<no_input;i++)
wih[i]=(float *)realloc(wih[i],no_hidden*sizeof(float));
who=(float **)realloc(who,no_hidden*sizeof(float *));
who[no_hidden-1]=(float *)malloc(no_output*sizeof(float));
for (i=0;i<no_input;i++)
wih[i][no_hidden-1]=myrand(&SEED);
for (j=0;j<no_output;j++)
who[no_hidden-1][j]=myrand(&SEED);
hidbias=(float *)realloc(hidbias,no_hidden*sizeof(float));
hidbias[no_hidden-1]=myrand(&SEED);
}
float func(float x)
{
return (1.00/(1.00+exp(-x)));
}
void prpgte(float *indat)
{
float net;
int i,j,k;
for(j=0;j<(no_hidden);j++)
{
net=0.00;
for(i=0;i<no_input;i++)
{
net+=wih[i][j]*indat[i];
}
net+=hidbias[j];
h_output[j]=func(net);
// cout<<"h_output["<<j<<"] "<<h_output[j]<<endl;
}
// h_output[no_hidden-1]=1;
//bias for the inner layer
for(k=0;k<no_output;k++)
{
net=0.00;
for(j=0;j<no_hidden;j++)
{
net+=who[j][k]*h_output[j];
}
o_output[k]=func(net);
// cout<<"o_output["<<k<<"] "<<o_output[k]<<endl;
}
}
void incwgt(float *dv,float *delw)
{
int i,j;
for (i=0;i<no_input;i++)
for (j=0;j<no_hidden;j++)
dv[no_hidden*i+j]=wih[i][j]+delw[no_hidden*i+j];
for (i=0;i<no_hidden;i++)
dv[no_input*no_hidden+i]=hidbias[i]+delw[no_input*no_hidden+i];
for (i=0;i<no_hidden;i++)
for (j=0;j<no_output;j++)
dv[no_input*no_hidden+no_hidden+no_output*i+j]=who[i][j]+delw[no_input*no_hidden+no_hidden+no_output*i+j];
}
void asswgt(float *dv)
{
int i,j;
for (i=0;i<no_input;i++)
for (j=0;j<no_hidden;j++)
wih[i][j]=dv[no_hidden*i+j];
for (i=0;i<no_hidden;i++)
hidbias[i]=dv[no_input*no_hidden+i];
for (i=0;i<no_hidden;i++)
for (j=0;j<no_output;j++)
who[i][j]=dv[no_input*no_hidden+no_hidden+no_output*i+j];
}
void bound(float *pdva,float *pdvc,float *delw, int *fflag)
{
int MAX_NO=100;
int i;
float magn=2,gea,geb,gec,*dvb;
int nvar,cnt=0;
nvar=(no_input*no_hidden+no_hidden+no_hidden*no_output);
dvb=(float *)malloc(nvar*sizeof(float));
asswgt(pdva);
gea=calc_ge();
//cout<<"c";
incwgt(dvb,delw);
//cout<<"d";
asswgt(dvb);
geb=calc_ge();
// for(i=0;i<nvar;i++)
// cout<<(*pdva)[i]<<" "<<dvb[i]<<" "<<endl;
//cout<<"e";
if (geb < gea)
{
asswgt(dvb);
// (*pdvc)=incwgt(delw);
/* ddum=incwgt(delw);
for (i=0;i<nvar;i++)
(*pdvc)[i]=ddum[i];*/
incwgt(pdvc,delw);
asswgt(pdvc);
gec=calc_ge();
while ((gec<=geb)&&(cnt<=MAX_NO))
{
cnt+=1;
// magn*=1.1;
for (i=0;i<nvar;i++)
{
pdva[i]=dvb[i];
dvb[i]=pdvc[i];
}
gea=geb;
geb=gec;
asswgt(pdvc);
// (*pdvc)=incwgt(delw);
/* ddum=incwgt(delw);
for (i=0;i<nvar;i++)
(*pdvc)[i]=ddum[i];*/
for (i=0;i<nvar;i++)
delw[i]=magn*delw[i];
incwgt(pdvc,delw);
asswgt(pdvc);
gec=calc_ge();
if (fabs(gec)>MAXBND)
{
*fflag=1;
break;
}
if (cnt>=MAX_NO)
break;
// cout<<gea<<" "<<geb<<" "<<gec<<" "<<endl;
}
}
else
{
for (i=0; i < nvar;i++)
delw[i]=-delw[i];
while ((gea<geb))
{
// magn*=1.1;
cnt+=1;
for (i=0;i<nvar;i++)
{
pdvc[i]=dvb[i];
dvb[i]=pdva[i];
}
gec=geb;
geb=gea;
asswgt(pdva);
// (*pdva)=incwgt(delw);
/* ddum=incwgt(delw);
for (i=0;i<nvar;i++)
(*pdva)[i]=ddum[i];*/
for (i=0;i<nvar;i++)
delw[i]=magn*delw[i];
// cout<<gea<<" l "<<geb<<" "<<gec<<" "<<endl;
incwgt(pdva,delw);
asswgt(pdva);
gea=calc_ge();
if (fabs(gec)>MAXBND)
{
*fflag=1;
break;
}
if (cnt>=MAX_NO)
break;
}
}
if (cnt>=MAX_NO)
(*fflag)=1;
else
(*fflag)=0;
//cout<<cnt;
// for(i=0;i<nvar;i++)
// cout<<(*pdva)[i]<<" "<<dvb[i]<<" "<<(*pdvc)[i]<<" "<<endl;
free(dvb);
// cout<<"bounding.."<<gea<<" "<<geb<<" "<<gec<<endl;
}
// float *gold(float *dv1,float *dv4,int *gflag)
void gold(float *dv1,float *dv4,int *gflag)
{
int MAX_NO=100;
float tau=(sqrt(5.00)-1.00)/2.00;
float ge1,ge2,ge3,ge4,*dv2,*dv3;
int i,nvar,cnt=0;
float *delw;
float max_ge,l,l1;
float relerr=100.00;
// char opt;
nvar=(no_input*no_hidden+no_hidden+no_hidden*no_output);
delw=(float *)malloc(nvar*sizeof(float));
dv2=(float *)malloc(nvar*sizeof(float));
dv3=(float *)malloc(nvar*sizeof(float));
if ((delw==NULL)||(dv2==NULL)||(dv3==NULL))
{
cout<<"Out of Memory"<<endl;
exit(0);
}
asswgt(dv1);
ge1=calc_ge();
asswgt(dv4);
ge4=calc_ge();
l1=0.0;
for (i=0;i<nvar;i++)
l1+=(dv4[i]-dv1[i])*(dv4[i]-dv1[i]);
l1=sqrt(l1);
l=l1;
for (i=0;i<nvar;i++)
delw[i]=-tau*(dv4[i]-dv1[i]);
asswgt(dv4);
incwgt(dv2,delw);
asswgt(dv2);
ge2=calc_ge();
for (i=0;i<nvar;i++)
delw[i]=tau*(dv4[i]-dv1[i]);
asswgt(dv1);
incwgt(dv3,delw);
asswgt(dv3);
ge3=calc_ge();
// cout<<l1<<" ";
if (ge1>ge4)
max_ge=ge1;
else
max_ge=ge4;
if ((ge2>max_ge)||(ge3>max_ge)||(fabs(ge4)>MAXBND))
{
//cout<<" :( "<<endl;
cnt=MAX_NO+1;
}
if (l1>0)
relerr=l/l1;
else
relerr=0;
while ((relerr>=lineps)&&(cnt<=MAX_NO) )
// while (ge2>=lineps)
{
// cout<<l<<endl;
cnt+=1;
if (ge2<=ge3)
{
for (i=0;i<nvar;i++)
{
dv4[i]=dv3[i];
dv3[i]=dv2[i];
}
ge4=ge3;
ge3=ge2;
for (i=0;i<nvar;i++)
delw[i]=-tau*(dv4[i]-dv1[i]);
l=tau*l;
asswgt(dv4);
//dv2=incwgt(delw);
incwgt(dv2,delw);
asswgt(dv2);
ge2=calc_ge();
}
else
{
for (i=0;i<nvar;i++)
{
dv1[i]=dv2[i];
dv2[i]=dv3[i];
}
ge1=ge2;
ge2=ge3;
for (i=0;i<nvar;i++)
delw[i]=tau*(dv4[i]-dv1[i]);
l=tau*l;
asswgt(dv1);
// dv3=incwgt(delw);
incwgt(dv3,delw);
asswgt(dv3);
ge3=calc_ge();
}
// cout<<ge1<<" "<<ge2<<" "<<ge3<<" "<<ge4<<endl;
if (l1>0)
relerr=l/l1;
else
relerr=0;
}
//cout<<l<<" ";
// cout<<" "<<cnt<<" ";
if (cnt>MAX_NO)
(*gflag)=1;
/* if (ge2 < ge3)
{
free(dv3);
free(delw);
return(dv2);
}
else
{
free(dv2);
free(delw);
return(dv3);
}*/
if (ge2 < ge3)
{
for (i=0;i<nvar;i++)
dv1[i]=dv2[i];
}
else
{
for (i=0;i<nvar;i++)
dv1[i]=dv3[i];
}
free(dv2);
free(dv3);
free(delw);
}
float calc_ge()
{
int i,fnum;
float ge=0;
for (fnum=0;fnum<datlen;fnum++)
{
prpgte(inpvec[fnum]);
perr[fnum]=0.00;
for(i=0;i<no_output;i++)
perr[fnum]+=0.5*(target[fnum][i]-o_output[i])*(target[fnum][i]-o_output[i]);
ge+=perr[fnum]*dat_wgts[fnum];
}
return(ge);
}
void store_best()
{
int i,j;
float gerr;
gerr=calc_ge();
if (gerr<low_ge)
{
low_ge=gerr;
free(wih_best);
free(who_best);
free(hidbias_best);
wih_best=(float **)malloc(no_input*sizeof(float *));
for(i=0;i<no_input;i++)
wih_best[i]=(float *)malloc(no_hidden*sizeof(float));
who_best=(float **)malloc(no_hidden*sizeof(float *));
for(i=0;i<no_hidden;i++)
who_best[i]=(float *)malloc(no_output*sizeof(float));
hidbias_best=(float *)malloc(no_hidden*sizeof(float));
for (i=0;i<no_hidden;i++)
hidbias_best[i]=hidbias[i];
for (i=0;i<no_input;i++)
for (j=0;j<no_hidden;j++)
wih_best[i][j]=wih[i][j];
for(i=0;i<no_hidden;i++)
for(j=0;j<no_output;j++)
who_best[i][j]=who[i][j];
no_hidden_best=no_hidden;
}
}
void assign_best()
{
int i,j;
float gerr;
gerr=calc_ge();
if (gerr>low_ge)
{
no_hidden=no_hidden_best;
free(hidbias);
free(h_output);
free(wih);
free(who);
hidbias=(float *)malloc(no_hidden*sizeof(float));
h_output=(float *)malloc(no_hidden*sizeof(float));
wih=(float **)malloc(no_input*sizeof(float *));
for(i=0;i<no_input;i++)
wih[i]=(float *)malloc(no_hidden*sizeof(float));
who=(float **)malloc(no_hidden*sizeof(float *));
for(i=0;i<no_hidden;i++)
who[i]=(float *)malloc(no_output*sizeof(float));
for (i=0;i<no_hidden;i++)
hidbias[i]=hidbias_best[i];
for (i=0;i<no_input;i++)
for (j=0;j<no_hidden;j++)
wih[i][j]=wih_best[i][j];
for(i=0;i<no_hidden;i++)
for(j=0;j<no_output;j++)
who[i][j]=who_best[i][j];
}
}
void train()
{
float ge=0,ge1=0;
int hidnoi=0,nflag=0,hflag=0,niter=1,ncnt=1,i,j,k,fnum=0,fflag=0,gflag=0;
// char opt;
float *pn,*po,*gn,*go,*pst,temp,res1,res2,res3,res4;
float *dva,*dvb;
int nvar;
nvar=(no_input*no_hidden+no_hidden+no_hidden*no_output);
//cout<<nvar<<endl;
pn=(float *)malloc(nvar*sizeof(float));
po=(float *)malloc(nvar*sizeof(float));
pst=(float *)malloc(nvar*sizeof(float));
gn=(float *)malloc(nvar*sizeof(float));
go=(float *)malloc(nvar*sizeof(float));
dva=(float *)malloc(nvar*sizeof(float));
dvb=(float *)malloc(nvar*sizeof(float));
hidbias_best=(float *)malloc(no_hidden*sizeof(float));
wih_best=(float **)malloc(no_input*sizeof(float *));
for(i=0;i<no_input;i++)
wih_best[i]=(float *)malloc(no_hidden*sizeof(float));
who_best=(float **)malloc(no_hidden*sizeof(float *));
for(i=0;i<no_hidden;i++)
who_best[i]=(float *)malloc(no_output*sizeof(float));
global_error=100.0;
ge1=10.00;
low_ge=10.00;
/* err=emax;
noiserr=eps;*/
while ((fabs(global_error)>err)&&(niter<=ITER_MAX))
{
// cout<<ncnt<<endl;
// srand((unsigned)time(NULL));
global_error=0.00;
// cout<<"Training #"<<niter<<" "<<no_hidden;
//shuffle();
for (i=0;i<nvar;i++)
gn[i]=0.00;
for(fnum=0;fnum<datlen;fnum++)
{
prpgte(inpvec[fnum]);
for(k=0;k<no_output;k++)
{
for(j=0;j<no_hidden;j++)
{
gn[no_input*no_hidden+no_hidden+no_output*j+k]+=-dat_wgts[fnum]*(target[fnum][k]-o_output[k])*o_output[k]*(1-o_output[k])*h_output[j];
}
}
for(j=0;j<(no_hidden);j++)
{
temp=0.00;
for(k=0;k<no_output;k++)
temp+=dat_wgts[fnum]*(target[fnum][k]-o_output[k])*o_output[k]*(1-o_output[k])*who[j][k];
//Gradients for biases..const input of +1
gn[no_input*no_hidden+j]+=-temp*h_output[j]*(1-h_output[j]);
for(i=0;i<no_input;i++)
{
gn[no_hidden*i+j]+=-temp*h_output[j]*(1-h_output[j])*inpvec[fnum][i];
}
}
// for (i=0;i<nvar;i++)
//cout<<gn[i]<<endl;
// cout<<ncnt<<endl;
}
res3=0.0;
res4=0.0;
for (i=0;i<nvar;i++)
res3+=(gn[i]*go[i]);
for (i=0;i<nvar;i++)
res4+=(gn[i]*gn[i]);
if ((ncnt==1)||(ncnt==(nvar+1))||(hflag==1)||(nflag==1)||(fabs(res3)>=0.2*res4))
// if ((ncnt==1)||(ncnt==(nvar+1))||(hflag==1)||(nflag==1))
{
// cout<<"restarting.."<<endl;
ncnt=1;
for (i=0;i<nvar;i++)
pn[i]=-gn[i];
// cout<<"hi"<<endl;
hflag=0;
nflag=0;
}
else
{
res1=0.0;
for (j=0;j<nvar;j++)
res1+=(gn[j]-go[j])*gn[j];
res2=0.0;
// for (j=0;j<nvar;j++)
//res2+=(gn[j]-go[j])*po[j];
for (j=0;j<nvar;j++)
res2+=go[j]*go[j];
// cout<<res1<<" "<<res2<<endl;
if (res2!=0)
for (i=0;i<nvar;i++)
pn[i]=-gn[i]+res1*po[i]/res2;
else
{
for (i=0;i<nvar;i++)
pn[i]=-gn[i];
ncnt=1;
}
}
// for (i=0;i<nvar;i++)
// cout<<go[i]<<" "<<gn[i]<<endl;
for (i=0;i<nvar;i++)
po[i]=pn[i];
for (i=0;i<nvar;i++)
go[i]=gn[i];
for (i=0;i<nvar;i++)
{
pst[i]=po[i]*step;
// cout<<pst[i]<<" "<<go[i]<<endl;
}
// cin>>opt;
for (i=0;i<no_input;i++)
for (j=0;j<no_hidden;j++)
dva[no_hidden*i+j]=wih[i][j];
for (i=0;i<no_hidden;i++)
dva[no_input*no_hidden+i]=hidbias[i];
for (i=0;i<no_hidden;i++)
for (j=0;j<no_output;j++)
dva[no_input*no_hidden+no_hidden+no_output*i+j]=who[i][j];
// cout<<"Bounding.."<<endl;
/* for (i=0;i<nvar;i++)
cout<<dva[i]<<" "<<dvb[i]<<endl;
cout<<"after"<<endl;*/
// for (i=0;i<nvar;i++)
// cout<<dva[i]<<endl;
//cout<<"a";
bound(dva,dvb,pst,&fflag);
/* for (i=0;i<nvar;i++)
cout<<dva[i]<<" "<<dvb[i]<<endl;*/
// cout<<"Bounding Complete..starting golden search routine"<<endl;
//cout<<"f";
// asswgt(gold(dva,dvb,&gflag));
gold(dva,dvb,&gflag);
asswgt(dva);
//cout<<"g ";
// cout<<"Search complete"<<endl;
global_error=calc_ge();
//cout<<global_error<<endl;
// cout<<endl;
// cout<<ge<<endl;
ncnt+=1;
// cout<<" ge "<<global_error<<endl;
if (niter==1)
low_ge=global_error+10.00;
store_best();
if (fabs(global_error) > err)
if ((fabs((global_error-ge1)/ge1)<=noiserr)||(fflag==1)||(gflag==1))
{
// cout<<"Reinitializing weights.."<<endl;
//noise();
/*if (fflag==1)
cout<<"Unable to bound...reinitializing weights\n"<<endl;
if (gflag==1)
cout<<"Golden Search failed...reinitializing weights\n"<<endl;*/
fflag=0;
gflag=0;
ncnt=1;
// init();
noise();
hidnoi+=1;
nflag=1;
}
if (global_error > err)
if ((hidnoi>=LOCMIN_CRIT))
{
// cout<<"Adding one more hidden neuron.."<<endl;
addhid();
nvar=(no_input*no_hidden+no_hidden+no_hidden*no_output);
hflag=1;
pn=(float *)realloc(pn,nvar*sizeof(float));
po=(float *)realloc(po,nvar*sizeof(float));
pst=(float *)realloc(pst,nvar*sizeof(float));
gn=(float *)realloc(gn,nvar*sizeof(float));
go=(float *)realloc(go,nvar*sizeof(float));
dva=(float *)realloc(dva,nvar*sizeof(float));
dvb=(float *)realloc(dvb,nvar*sizeof(float));
hidnoi=0;
}
ge1=global_error;
global_error=calc_ge();
niter++;
}
if (niter>ITER_MAX)
{
cout<<"Maximum no. of Iterations reached\n"<<endl;
assign_best();
cout<<"Least global error obtained "<<low_ge<<endl;
}
ge=calc_ge();
res1=perr[0];
res2=perr[0];
j=0;
k=0;
for(i=1;i<datlen;i++)
if (perr[i]>res1)
{
j=i;
res1=perr[i];
}
else
if (perr[i]<res2)
{
k=i;
res2=perr[i];
}
for (i=0;i<datlen;i++)
cout<<(i+1)<<" pattern error "<<perr[i]<<endl;
cout<<"------------------------------------------------"<<endl;
cout<<"Max pattern error "<<res1<<" pattern no."<<(j+1)<<endl;
cout<<"Min pattern error "<<res2<<" pattern no."<<(k+1)<<endl;
free(pn);
free(po);
free(pst);
free(gn);