Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.eso.org/~chummel/oyster/manual/node90.html
Дата изменения: Tue Apr 28 19:12:50 2015
Дата индексирования: Sun Apr 10 20:24:33 2016
Кодировка:
Поисковые слова: horizon

CONTROL

This menu contains variables which control the performance of the Marquardt-Levenberg (M-L) non-linear least squares fitting.

FIT OPTIONS $\vert$

ONE One iteration only

FLOAT Allow $V^2$ calibration to float

OPT. Optimize step size for M-L.

LAMBDA Gradient-Brute force parameter

TOLERANCE Ratio of smallest over largest eigenvalue allowed

CONVERGENCE Convergence criterion as ratio of new over previous $\chi^2$

Choosing the OPT. option will cause a one-time delay before starting M-L, including the loading of the interferometric data a second time as the optimization of the step size overwrites the currently loaded visibilities. The step size data are written into a file Z_h_steps.xdr.