Inheritance diagram for ParamStudy:
Public Member Functions | |
| ParamStudy (Model &model) | |
| constructor | |
| ~ParamStudy () | |
| destructor | |
| void | extract_trends () |
| Redefines the run_iterator virtual function for the PStudy/DACE branch. | |
Private Member Functions | |
| void | compute_vector_steps () |
| and either numSteps or stepLength (pStudyType is 1 or 2) | |
| void | sample (const RealVectorArray &list_of_points) |
| performs the parameter study by sampling from a list of points | |
| void | vector_loop (const RealVector &start, const RealVector &step_vect, const int &num_steps) |
| increments of step_vect. Total number of evaluations is num_steps + 1. | |
| void | centered_loop (const RealVector &start, const Real &percent_delta, const int &deltas_per_variable) |
| centered about start | |
| void | multidim_loop (const IntArray &var_partitions) |
| performs vector_loops recursively in multiple dimensions | |
Private Attributes | |
| RealVectorArray | listOfPoints |
| array of evaluation points for the list_parameter_study | |
| RealVector | initialPoint |
| the starting point for vector and centered parameter studies | |
| RealVector | finalPoint |
| the ending point for vector_parameter_study (a specification option) | |
| RealVector | stepVector |
| the n-dimensional increment in vector_parameter_study | |
| int | numSteps |
| the number of times stepVector is applied in vector_parameter_study | |
| short | pStudyType |
| (different vector specifications), 4 (centered), or 5 (multidim) | |
| int | deltasPerVariable |
| variable in a centered_parameter_study | |
| Real | stepLength |
| (a specification option) | |
| Real | percentDelta |
| centered_parameter_study | |
| IntArray | variablePartitions |
| number of partitions for each variable in a multidim_parameter_study | |
The ParamStudy class contains several algorithms for performing parameter studies of different types. It is not a wrapper for an external library, rather its algorithms are self-contained. The vector parameter study steps along an n-dimensional vector from an arbitrary initial point to an arbitrary final point in a specified number of steps. The centered parameter study performs a number of plus and minus offsets in each coordinate direction around a center point. A multidimensional parameter study fills an n-dimensional hypercube based on a specified number of intervals for each dimension. It is a nested study in that it utilizes the vector parameter study internally as it recurses through the variables. And the list parameter study provides for a user specification of a list of points to evaluate, which allows general parameter investigations not fitting the structure of vector, centered, or multidim parameter studies.
1.5.1