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##

analyze_map

- type: major action command.
- function: find the approximate first-order matrix and related quantities for an accelerator by tracking.
- sequence: must follow
`run_control`

.

&analyze_map
STRING output = NULL;
double delta_x = 1e-6;
double delta_xp = 1e-6;
double delta_y = 1e-6;
double delta_yp = 1e-6;
double delta_s = 1e-6;
double delta_dp = 1e-6;
long center_on_orbit = 0;
long verbosity = 0;
&end

`output`

-- The (incomplete) name of a file for SDDS output.
- Recommended value: ``%s.ana''.
- File contents: A series of dumps, each consisting of a single data point containing
the centroid offsets for a single turn, the single-turn R matrix, the matched Twiss parameters, tunes, and
dispersion functions.

`delta_X`

-- The amount by which to change the quantity X in computing the derivatives that give the matrix elements.
`center_on_orbit`

-- A flag directing the expansion to be made about the closed orbit instead of the design orbit.
`verbosity`

-- The larger this value, the more output is printed during computations.

Robert Soliday
2014-06-26