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renorm: renormalize model to minimize statistic with current parameters

Renormalize model, or change renorm conditions.

Syntax: renorm [AUTO | NONE | PREFIT]

The renorm command will adjust the normalizations of the model by a single multiplication factor, which is chosen to minimize the fit statistic.Such a renorm will be performed explicitly whenever the command is used without a key-word, or during certain XSPEC commands, as determined by the following key-words:

 

AUTO Renormalize after a model or newpar command, and at the beginning of a fit

PREFIT Renormalize only at the beginning of a fit

NONE Perform no automatic renormalizations, i.e., only perform them when a renorm command is given explicitly.