FOURIER: Unique Input Statements
FILE <File Id> <File name> [FORMAT (HKL | MAP | PACKED)] -
[SCALE <Value>] [BLUR <Value>]
This statement describes an external binary data file to the program. This file is subsequently referred to by the arbitrary ``File Id''. If the file's format is not HKL, which is the default, the type of file may be given via the FORMAT option. When the data are read from the file a scale factor and blur may be applied. Because of the extreme difficulty of applying a blur to an electron density map, when the file is a map file, the BLUR option is presumed to indicate that the map has a already been blurred by the indicated amount.