checkCIF procedure

PLAT923

 Please check whether the supplied '.fcf' file corresponds with the '.cif'
 file produced in the same least-squares refinement job. See at the end of
 Section #10 in the '.ckf' report file for details. The test is based on the
 observed and calculated F**2 in the '.fcf' file and de weight parameters
 taken from the '.cif' file.