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Macromolecular dictionary (mmCIF) version 2.0.09




   Weighted residual factor wR for reflections that satisfy the
   resolution limits established by _refine_ls_shell.d_res_high
   and _refine_ls_shell.d_res_low and the observation criterion
   established by _reflns.observed_criterion.

        ( sum|w |Y~obs~ - Y~calc~|^2^| )^1/2^
   wR = ( ---------------------------- )
        (        sum|w Y~obs~^2^|      )

   Y~obs~  = the observed amplitude specified by
   Y~calc~ = the calculated amplitude specified by
   w       = the least-squares weight

   sum is taken over the specified reflections

Type: float

Mandatory item: no

The permitted range is [0.0, infinity)

Related item: _refine_ls_shell.R_factor_obs (alternate)

Category: refine_ls_shell