**Definition:**

The value of Rmerge(I) for reflections classified as 'observed' (see _reflns.observed_criterion) in a given shell. sum~i~(sum~j~|I~j~ - <I>|) Rmerge(I) = -------------------------- sum~i~(sum~j~<I>) I~j~ = the intensity of the jth observation of reflection i <I> = the mean of the intensities of all observations of reflection i sum~i~ is taken over all reflections sum~j~ is taken over all observations of each reflection

**Type:** float

**Mandatory item:** no

The permitted range is [0.0, infinity)

**Category:** reflns_shell

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