(PECL svm >= 0.1.5)
SVMModel::getSvrProbability — Get the sigma value for regression types
public SVMModel::getSvrProbability ( ) : float
For regression models, returns a sigma value. If there is no probability information or the model is not SVR, 0 is returned.
This function has no parameters.
Returns a sigma value
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https://www.php.net/manual/en/svmmodel.getsvrprobability.php