Data Item _em_map.r_value_all_data

General

Item name
_em_map.r_value_all_data
Category name
em_map
Attribute name
r_value_all_data
Required in PDB entries
no
Used in currrent PDB entries
No

Item Description

The R-factor value compares overall agreement between the amplitudes of two sets of structure factors as follows: R= sigma || Fobs | - | Fcalc || / sigma | Fobs | For each reflection the magnitude of the computed difference between the observed structure-factor amplitude from the native data set |Fobs| and the calculated amplitude from the model in its current trial location |Fcalc| is summed for all reflections and divided by the sum of the observed structure factors.

Data Type

Data type code
float
Data type detail
int item types are the subset of numbers that are the floating numbers.
Primitive data type code
numb
Regular expression
-?(([0-9]+)[.]?|([0-9]*[.][0-9]+))([(][0-9]+[)])?([eE][+-]?[0-9]+)?