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(PECL fann >= 1.0.0)
fann_randomize_weights — Give each connection a random weight between min_weight and max_weight
$ann 
   ,  float $min_weight 
   ,  float $max_weight 
   )
   Give each connection a random weight between min_weight and max_weight 
From the beginning the weights are random between -0.1 and 0.1.
ann Neural network resource .
min_weight Minimum weight value
max_weight Maximum weight value
Returns  TRUE  on success, or  FALSE  otherwise.