%Beta (beta) function parameter
%
%  <a href="matlab:doc nnparam.beta">beta</a> is a <a href="matlab:doc nntrain">training function</a> parameter.
%  It must be a positive scalar.
%
%  <a href="matlab:doc nnparam.beta">beta</a> defines the acceptablely large step size for a search
%  step by the line search algorithms used for training.
%
%  All search parameters are <a href="matlab:doc nnparam.alpha">alpha</a>, <a href="matlab:doc nnparam.beta">beta</a>, <a href="matlab:doc nnparam.bmax">bmax</a>,
%  <a href="matlab:doc nnparam.gama">gama</a>, <a href="matlab:doc nnparam.delta">delta</a>, <a href="matlab:doc nnparam.low_lim">low_lim</a>, <a href="matlab:doc nnparam.up_lim">up_lim</a>,
%  <a href="matlab:doc nnparam.min_step">min_step</a>, <a href="matlab:doc nnparam.max_step">max_step</a> and <a href="matlab:doc nnparam.scale_tol">scale_tol</a>.
%
%  This parameter is used by <a href="matlab:doc trainbfg">trainbfg</a>, <a href="matlab:doc traincgb">traincgb</a>, <a href="matlab:doc traincgf">traincgf</a>, <a href="matlab:doc traincgp">traincgp</a> and <a href="matlab:doc trainoss">trainoss</a>.
 

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