Класс: FunctionApproximation.LUTSolution
Пакет: Функциональная аппроксимация
Сравните числовые результаты FunctionApproximation.LUTSolution к исходной функции или интерполяционной таблице
data = compare(solution)
data = compare(solution)FunctionApproximation.LUTSolution объект, solution, и исходная интерполяционная таблица, функция или блок Math Function.
Создайте FunctionApproximation.Problem объект, задающий функцию, вы хотите аппроксимировать.
problem = FunctionApproximation.Problem('tanh')problem =
1x1 FunctionApproximation.Problem with properties:
FunctionToApproximate: @(x)tanh(x)
NumberOfInputs: 1
InputTypes: "numerictype(1,16,12)"
InputLowerBounds: -8
InputUpperBounds: 8
OutputType: "numerictype(1,16,15)"
Options: [1x1 FunctionApproximation.Options]
Используйте значения по умолчанию для всех других опций. Аппроксимируйте tanh функция с помощью solve метод.
solution = solve(problem)
| ID | Memory (bits) | Feasible | Table Size | Breakpoints WLs | TableData WL | BreakpointSpecification | Error(Max,Current) | | 0 | 64 | 0 | 2 | 16 | 16 | EvenSpacing | 7.812500e-03, 9.999998e-01 | | 1 | 1248 | 1 | 76 | 16 | 16 | EvenSpacing | 7.812500e-03, 4.368265e-03 | | 2 | 1232 | 1 | 75 | 16 | 16 | EvenSpacing | 7.812500e-03, 4.439035e-03 | | 3 | 944 | 1 | 57 | 16 | 16 | EvenSpacing | 7.812500e-03, 7.780470e-03 | | 4 | 928 | 1 | 56 | 16 | 16 | EvenSpacing | 7.812500e-03, 6.110240e-03 | | 5 | 656 | 0 | 39 | 16 | 16 | EvenSpacing | 7.812500e-03, 1.678519e-02 | | 6 | 640 | 0 | 38 | 16 | 16 | EvenSpacing | 7.812500e-03, 1.660649e-02 | | 7 | 784 | 0 | 47 | 16 | 16 | EvenSpacing | 7.812500e-03, 1.102459e-02 | | 8 | 848 | 1 | 51 | 16 | 16 | EvenSpacing | 7.812500e-03, 6.211764e-03 | | 9 | 816 | 1 | 49 | 16 | 16 | EvenSpacing | 7.812500e-03, 6.811833e-03 | | 10 | 800 | 0 | 48 | 16 | 16 | EvenSpacing | 7.812500e-03, 1.105540e-02 | | 11 | 432 | 0 | 25 | 16 | 16 | EvenSpacing | 7.812500e-03, 3.532625e-02 | | 12 | 624 | 0 | 37 | 16 | 16 | EvenSpacing | 7.812500e-03, 1.870074e-02 | | 13 | 720 | 0 | 43 | 16 | 16 | EvenSpacing | 7.812500e-03, 1.355547e-02 | | 14 | 768 | 0 | 46 | 16 | 16 | EvenSpacing | 7.812500e-03, 1.199717e-02 | | 15 | 384 | 1 | 12 | 16 | 16 | ExplicitValues | 7.812500e-03, 7.812317e-03 | | 16 | 384 | 0 | 12 | 16 | 16 | ExplicitValues | 7.812500e-03, 1.196141e-02 | | 17 | 384 | 1 | 12 | 16 | 16 | ExplicitValues | 7.812500e-03, 7.812317e-03 | Best Solution | ID | Memory (bits) | Feasible | Table Size | Breakpoints WLs | TableData WL | BreakpointSpecification | Error(Max,Current) | | 15 | 384 | 1 | 12 | 16 | 16 | ExplicitValues | 7.812500e-03, 7.812317e-03 |
solution =
1x1 FunctionApproximation.LUTSolution with properties:
ID: 15
Feasible: "true"
Сравните исходную функцию и приближение функций.
data = compare(solution)
data = struct with fields:
Breakpoints: [65536x1 double]
Original: [65536x1 double]
Approximate: [65536x1 double]
FunctionApproximation.LUTMemoryUsageCalculator | FunctionApproximation.LUTSolution | FunctionApproximation.Options | FunctionApproximation.Problemapproximate | compare | solve