forked from scemama/qmc-lttc
16 lines
412 B
Fortran
16 lines
412 B
Fortran
subroutine ave_error(x,n,ave,err)
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implicit none
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integer, intent(in) :: n
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double precision, intent(in) :: x(n)
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double precision, intent(out) :: ave, err
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double precision :: variance
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if (n == 1) then
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ave = x(1)
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err = 0.d0
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else
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ave = sum(x(:)) / dble(n)
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variance = sum( (x(:) - ave)**2 ) / dble(n-1)
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err = dsqrt(variance/dble(n))
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endif
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end subroutine ave_error
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