R-factors: Difference between revisions

Jump to navigation Jump to search
29 bytes removed ,  2 May 2008
no edit summary
No edit summary
Line 1: Line 1:
Historically, R-factors were introduced by ... ???
== Definitions ==
== Definitions ==
=== Data quality indicators ===
=== Data quality indicators ===
Line 38: Line 36:


=== Model quality indicators ===
=== Model quality indicators ===
* R and R<sub>free</sub> : the formula for both is  
* R and [[iucr:Free_R_factor|R<sub>free</sub>]] : the formula for both is  
  <math>
  <math>
  R=\frac{\sum_{hkl}\vert F_{hkl}^{obs}-F_{hkl}^{calc}\vert}{\sum_{hkl} F_{hkl}^{obs}}
  R=\frac{\sum_{hkl}\vert F_{hkl}^{obs}-F_{hkl}^{calc}\vert}{\sum_{hkl} F_{hkl}^{obs}}
1,328

edits

Cookies help us deliver our services. By using our services, you agree to our use of cookies.

Navigation menu