&lification_factors
    STRING output = NULL;
    STRING uncorrected_orbit_function = NULL;
    STRING corrected_orbit_function = NULL;
    STRING kick_function = NULL;
    STRING name = NULL;
    STRING type = NULL;
    STRING item = NULL;
    STRING plane = NULL;
    double change = 1e-3;
    long number_to_do = -1;
    double maximum_z = 0;
&end
output --  The (incomplete) name of a file for text output.   Recommended value: ``%s.af''.
uncorrected_orbit_function -- The (incomplete) name of a file for an SDDS-format output of the
    uncorrected-orbit amplification function.  Recommended value: ``%s.uof''.
corrected_orbit_function -- The (incomplete) name of a file for an SDDS-format output of the
    corrected-orbit amplification function.  Recommended value: ``%s.cof''.
kick_function -- The (incomplete) name of a file for an SDDS-format output of the kick amplification function.
Recommended value: ``%s.kaf''.
name -- The optionally wildcarded name of the orbit-perturbing elements.  
type -- The optional type name of the the orbit-perturbing elements.
item -- The parameter of the elements producing the orbit.
plane -- The plane (``h'' or ``v'') to examine.
change -- The parameter change to use in computing the amplification.  
number_to_do -- The number of elements to perturb.
maximum_z -- The maximum z coordinate of the elements to perturb.