##### Core dictionary (coreCIF) version 2.3.1

# _reflns_shell_Rmerge_F_all

**Name:**

`'_reflns_shell_Rmerge_F_all'`

**Definition:**

The value of Rmerge(F) for all reflections in a given shell. sum~i~ ( sum~j~ | F~j~ - <F> | ) Rmerge(F) = -------------------------------- sum~i~ ( sum~j~ <F> ) F~j~ = the amplitude of the jth observation of reflection i <F> = the mean of the amplitudes of all observations of reflection i sum~i~ is taken over all reflections sum~j~ is taken over all observations of each reflection.

Appears in list

The permitted range is 0.0 -> infinity

**Type:** numb

**Category:** reflns_shell