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335536b6ec
Better calc of snrdb, especially for strong signals. git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@2719 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
23 lines
350 B
Fortran
23 lines
350 B
Fortran
subroutine pctile(x,npts,npct,xpct)
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parameter (NMAX=32768)
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real*4 x(npts)
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real*4 tmp(NMAX)
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if(npts.le.0) then
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xpct=1.0
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go to 900
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endif
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if(npts.gt.NMAX) stop
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tmp(1:npts)=x
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call sort(npts,tmp)
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j=nint(npts*0.01*npct)
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if(j.lt.1) j=1
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if(j.gt.npts) j=npts
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xpct=tmp(j)
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900 continue
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return
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end subroutine pctile
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