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#include <TPNFit.h>
Public Member Functions | |
| double | doFit (int, double *) |
| double | getAmpl () |
| double | getTimax () |
| void | init (int, int, int) |
| TPNFit () | |
| virtual | ~TPNFit () |
Private Attributes | |
| double | ampl |
| int | firstsample |
| int | fNsamples |
| int | fNum_samp_after_max |
| int | fNum_samp_bef_max |
| double | fv1 [NMAXSAMP2] |
| double | fv2 [NMAXSAMP2] |
| double | fv3 [NMAXSAMP2] |
| int | lastsample |
| double | t [NMAXSAMP2] |
| double | timeatmax |
| double | val [NMAXSAMP2] |
| TPNFit::TPNFit | ( | ) |
Definition at line 17 of file TPNFit.cc.
References fNsamples, fNum_samp_after_max, and fNum_samp_bef_max.
{
fNsamples = 0;
fNum_samp_bef_max = 0;
fNum_samp_after_max = 0;
}
| double TPNFit::doFit | ( | int | maxsample, |
| double * | adc | ||
| ) |
Definition at line 46 of file TPNFit.cc.
References a, ampl, b, trackerHits::c, validate-o2o-wbm::f1, validate-o2o-wbm::f2, connectstrParser::f3, firstsample, fNsamples, fNum_samp_after_max, fNum_samp_bef_max, fv1, fv2, fv3, i, lastsample, timeatmax, val, and detailsBasic3DVector::y.
{
double chi2=0.;
ampl=0.; timeatmax=0.;
//printf("maxsample=%d\n",maxsample);
firstsample= maxsample - fNum_samp_bef_max;
lastsample= maxsample + fNum_samp_after_max;
if(firstsample <= 0) return 101;
if(lastsample >= fNsamples) lastsample=fNsamples-1;
if(lastsample-firstsample < 1) return 102;
int nval= lastsample-firstsample +1;
//printf("firstsample=%d lastsample=%d nval=%d\n",
// firstsample,lastsample,nval);
int testneg=0;
for(int kn=firstsample;kn<=lastsample;kn++) {
//printf("adc[%d]=%f\n",kn,adc[kn]);
if(adc[kn] < 0.) testneg=1;
}
if(testneg == 1) return 103;
for(int i=firstsample;i<=lastsample;i++) {
val[i-firstsample]= adc[i];
fv1[i-firstsample]= 1.;
fv2[i-firstsample]= (double) (i);
fv3[i-firstsample]= ((double)(i))*((double)(i));
}
TVectorD y(nval,val);
//y.Print();
TVectorD f1(nval,fv1);
//f1.Print();
TVectorD f2(nval,fv2);
//f2.Print();
TVectorD f3(nval,fv3);
//f3.Print();
double bj[3];
bj[0]= f1*y; bj[1]=f2*y; bj[2]= f3*y;
TVectorD b(3,bj);
//b.Print();
double aij[9];
aij[0]= f1*f1; aij[1]=f1*f2; aij[2]=f1*f3;
aij[3]= f2*f1; aij[4]=f2*f2; aij[5]=f2*f3;
aij[6]= f3*f1; aij[7]=f3*f2; aij[8]=f3*f3;
TMatrixD a(3,3,aij);
//a.Print();
double det1;
a.InvertFast(&det1);
//a.Print();
TVectorD c= a*b;
//c.Print();
double *par= c.GetMatrixArray();
//printf("par0=%f par1=%f par2=%f\n",par[0],par[1],par[2]);
if(par[2] != 0.) {
timeatmax= -par[1]/(2.*par[2]);
ampl= par[0]-par[2]*(timeatmax*timeatmax);
}
//printf("amp=%f time=%f\n",amp_max,timeatmax);
if(ampl <= 0.) {
ampl=adc[maxsample];
return 1.;
}
if((int)timeatmax > lastsample)
return 103;
if((int)timeatmax < firstsample)
return 103;
return chi2;
}
| double TPNFit::getAmpl | ( | ) | [inline] |
| double TPNFit::getTimax | ( | ) | [inline] |
| void TPNFit::init | ( | int | nsamples, |
| int | firstsample, | ||
| int | lastsample | ||
| ) |
Definition at line 30 of file TPNFit.cc.
References firstsample, fNsamples, fNum_samp_after_max, fNum_samp_bef_max, gen::k, lastsample, NMAXSAMP2, and t.
{
fNsamples = nsamples ;
fNum_samp_bef_max = firstsample ;
fNum_samp_after_max = lastsample ;
//printf("nsamples=%d firstsample=%d lastsample=%d\n",nsamples,firstsample,lastsample);
if(fNsamples > NMAXSAMP2)
printf("number of PN samples exceed maximum\n");
for(int k=0;k<NMAXSAMP2;k++)
t[k]= (double) k;
return ;
}
double TPNFit::ampl [private] |
int TPNFit::firstsample [private] |
int TPNFit::fNsamples [private] |
int TPNFit::fNum_samp_after_max [private] |
int TPNFit::fNum_samp_bef_max [private] |
double TPNFit::fv1[NMAXSAMP2] [private] |
double TPNFit::fv2[NMAXSAMP2] [private] |
double TPNFit::fv3[NMAXSAMP2] [private] |
int TPNFit::lastsample [private] |
double TPNFit::timeatmax [private] |
Definition at line 21 of file TPNFit.h.
Referenced by doFit(), and getTimax().
double TPNFit::val[NMAXSAMP2] [private] |
1.7.3