ProportionalHazardsNewtonRaphson Properties |
The ProportionalHazardsNewtonRaphson type exposes the following members.
Name | Description | |
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ComputeBaselineFunction |
Gets or sets a value indicating whether an estimate
of the baseline hazard function should be computed
at the end of the next iterations.
| |
ComputeStandardErrors |
Gets or sets a value indicating whether standard
errors should be computed at the end of the next
iterations.
| |
CurrentIteration |
Gets or sets the number of performed iterations.
| |
Estimator |
Gets or sets the hazard estimator that should be used by the
proportional hazards learning algorithm. Default is to use
BreslowNelsonAalen.
| |
Gradient |
Gets the Gradient vector computed in
the last Newton-Raphson iteration.
| |
HasConverged |
Gets or sets whether the algorithm has converged.
| |
Hessian |
Gets the Hessian matrix computed in
the last Newton-Raphson iteration.
| |
Iterations | Obsolete.
Please use MaxIterations instead.
| |
Lambda |
Gets or sets the smoothing factor used to avoid numerical
problems in the beginning of the training. Default is 0.1.
| |
MaxIterations |
Gets or sets the maximum number of iterations
performed by the learning algorithm.
| |
Model |
Gets or sets the regression model being learned.
| |
Normalize |
Gets or sets a value indicating whether the Cox model should
be computed using the mean-centered version of the covariates.
Default is true.
| |
Parameters |
Gets the total number of parameters in the model.
| |
Previous |
Gets the previous values for the coefficients which were
in place before the last learning iteration was performed.
| |
Solution |
Gets the current values for the coefficients.
| |
Ties |
Gets or sets the ties handling method to be used by the
proportional hazards learning algorithm. Default is to use
Efron's method.
| |
Token |
Gets or sets a cancellation token that can be used to
stop the learning algorithm while it is running.
| |
Tolerance |
Gets or sets the maximum absolute parameter change detectable
after an iteration of the algorithm used to detect convergence.
Default is 1e-5.
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