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File: [HallC] / Analyzer / HTRACKING / h_fcnchisq.f
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Revision: 1.1, Sat Feb 19 06:14:15 1994 UTC (30 years, 7 months ago) by cdaq Branch: MAIN Initial revision |
subroutine H_FCNCHISQ(npar,grad,fval,ray,iflag,dummy) * This subroutine calculates chi**2 for MINUIT for HMS. The * arguments are determined by MINUIT * * d.f. geesaman 17 January 1994 * $Log: h_fcnchisq.f,v $ * Revision 1.1 1994/02/19 06:14:15 cdaq * Initial revision * * implicit none external H_DPSIFUN real*8 H_DPSIFUN include "gen_data_structures.cmn" include "hms_tracking.cmn" include "hms_geometry.cmn" * * input real*8 ray(*),grad(*),dummy integer*4 npar,iflag * output real*8 fval ! value of chi2 * * local variables real*8 diff integer*4 ihit integer*4 hitnum,planenum fval=0.0d0 do ihit=1,HNTRACK_HITS(htrack_fit_num,1) hitnum=HNTRACK_HITS(htrack_fit_num,ihit+1) planenum=HDC_PLANE_NUM(hitnum) diff=(dble(HDC_WIRE_COORD(hitnum))-H_DPSIFUN(ray,planenum)) & /dble(hdc_sigma(planenum)) fval=fval+diff*diff enddo return end
Analyzer/Replay: Mark Jones, Documents: Stephen Wood |
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