[5333] | 1 | #region License Information
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| 2 | /* HeuristicLab
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[17181] | 3 | * Copyright (C) Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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[5333] | 4 | *
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| 5 | * This file is part of HeuristicLab.
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| 6 | *
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| 7 | * HeuristicLab is free software: you can redistribute it and/or modify
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| 8 | * it under the terms of the GNU General Public License as published by
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| 9 | * the Free Software Foundation, either version 3 of the License, or
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| 10 | * (at your option) any later version.
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| 11 | *
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| 12 | * HeuristicLab is distributed in the hope that it will be useful,
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 15 | * GNU General Public License for more details.
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| 16 | *
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| 17 | * You should have received a copy of the GNU General Public License
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| 18 | * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
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| 19 | */
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| 20 | #endregion
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| 21 |
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[5393] | 22 | using System.Collections.Generic;
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[5333] | 23 | using System.Linq;
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[17498] | 24 | using HEAL.Attic;
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[5333] | 25 | using HeuristicLab.Common;
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| 26 | using HeuristicLab.Core;
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| 27 | using HeuristicLab.Encodings.SymbolicExpressionTreeEncoding;
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| 28 | namespace HeuristicLab.Problems.DataAnalysis.Symbolic {
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[17097] | 29 | [StorableType("36A22322-0627-4E25-A468-F2A788AF6D46")]
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[5333] | 30 | [Item("TypeCoherentExpressionGrammar", "Represents a grammar for functional expressions in which special syntactic constraints are enforced so that boolean and real-valued expressions are not mixed.")]
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[17498] | 31 | public class TypeCoherentExpressionGrammar : DataAnalysisGrammar, ISymbolicDataAnalysisGrammar {
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[6803] | 32 | private const string ArithmeticFunctionsName = "Arithmetic Functions";
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| 33 | private const string TrigonometricFunctionsName = "Trigonometric Functions";
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| 34 | private const string ExponentialFunctionsName = "Exponential and Logarithmic Functions";
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| 35 | private const string RealValuedSymbolsName = "Real Valued Symbols";
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| 36 | private const string TerminalsName = "Terminals";
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| 37 | private const string PowerFunctionsName = "Power Functions";
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| 38 | private const string ConditionsName = "Conditions";
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| 39 | private const string ComparisonsName = "Comparisons";
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| 40 | private const string BooleanOperatorsName = "Boolean Operators";
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| 41 | private const string ConditionalSymbolsName = "ConditionalSymbols";
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[7696] | 42 | private const string SpecialFunctionsName = "Special Functions";
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[6803] | 43 | private const string TimeSeriesSymbolsName = "Time Series Symbols";
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[5333] | 44 |
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| 45 | [StorableConstructor]
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[17097] | 46 | protected TypeCoherentExpressionGrammar(StorableConstructorFlag _) : base(_) { }
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[5333] | 47 | protected TypeCoherentExpressionGrammar(TypeCoherentExpressionGrammar original, Cloner cloner) : base(original, cloner) { }
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| 48 | public TypeCoherentExpressionGrammar()
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[5688] | 49 | : base(ItemAttribute.GetName(typeof(TypeCoherentExpressionGrammar)), ItemAttribute.GetDescription(typeof(TypeCoherentExpressionGrammar))) {
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[5333] | 50 | Initialize();
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| 51 | }
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| 52 | public override IDeepCloneable Clone(Cloner cloner) {
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| 53 | return new TypeCoherentExpressionGrammar(this, cloner);
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| 54 | }
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| 55 |
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| 56 | private void Initialize() {
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[6803] | 57 | #region symbol declaration
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[5333] | 58 | var add = new Addition();
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| 59 | var sub = new Subtraction();
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| 60 | var mul = new Multiplication();
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| 61 | var div = new Division();
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| 62 | var mean = new Average();
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| 63 | var sin = new Sine();
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| 64 | var cos = new Cosine();
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| 65 | var tan = new Tangent();
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| 66 | var log = new Logarithm();
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| 67 | var pow = new Power();
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[7695] | 68 | var square = new Square();
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[5393] | 69 | var root = new Root();
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[7695] | 70 | var sqrt = new SquareRoot();
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[17072] | 71 | var cube = new Cube();
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| 72 | var cubeRoot = new CubeRoot();
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[5333] | 73 | var exp = new Exponential();
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[17072] | 74 | var abs = new Absolute();
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[7696] | 75 |
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| 76 | var airyA = new AiryA();
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| 77 | var airyB = new AiryB();
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| 78 | var bessel = new Bessel();
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| 79 | var cosineIntegral = new CosineIntegral();
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| 80 | var dawson = new Dawson();
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| 81 | var erf = new Erf();
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| 82 | var expIntegralEi = new ExponentialIntegralEi();
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| 83 | var fresnelCosineIntegral = new FresnelCosineIntegral();
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| 84 | var fresnelSineIntegral = new FresnelSineIntegral();
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| 85 | var gamma = new Gamma();
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| 86 | var hypCosineIntegral = new HyperbolicCosineIntegral();
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[17101] | 87 | var tanh = new HyperbolicTangent();
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[7696] | 88 | var hypSineIntegral = new HyperbolicSineIntegral();
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| 89 | var norm = new Norm();
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| 90 | var psi = new Psi();
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| 91 | var sineIntegral = new SineIntegral();
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[17072] | 92 | var analyticalQuotient = new AnalyticQuotient();
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[7696] | 93 |
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[5333] | 94 | var @if = new IfThenElse();
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| 95 | var gt = new GreaterThan();
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| 96 | var lt = new LessThan();
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| 97 | var and = new And();
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| 98 | var or = new Or();
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| 99 | var not = new Not();
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[10910] | 100 | var xor = new Xor();
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[6803] | 101 | var variableCondition = new VariableCondition();
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[5393] | 102 |
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| 103 | var timeLag = new TimeLag();
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| 104 | var integral = new Integral();
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| 105 | var derivative = new Derivative();
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| 106 |
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[5333] | 107 | var constant = new Constant();
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| 108 | constant.MinValue = -20;
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| 109 | constant.MaxValue = 20;
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[6803] | 110 | var variableSymbol = new Variable();
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[15131] | 111 | var binFactorVariable = new BinaryFactorVariable();
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| 112 | var factorVariable = new FactorVariable();
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[5333] | 113 | var laggedVariable = new LaggedVariable();
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[8798] | 114 | var autoregressiveVariable = new AutoregressiveTargetVariable();
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[6803] | 115 | #endregion
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[5333] | 116 |
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[6803] | 117 | #region group symbol declaration
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| 118 | var arithmeticSymbols = new GroupSymbol(ArithmeticFunctionsName, new List<ISymbol>() { add, sub, mul, div, mean });
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[17498] | 119 | var trigonometricSymbols = new GroupSymbol(TrigonometricFunctionsName, new List<ISymbol>() { sin, cos, tan, tanh });
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| 120 | var exponentialAndLogarithmicSymbols = new GroupSymbol(ExponentialFunctionsName, new List<ISymbol> { exp, log });
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[17072] | 121 | var specialFunctions = new GroupSymbol(SpecialFunctionsName, new List<ISymbol> { abs, airyA, airyB, bessel, cosineIntegral, dawson, erf, expIntegralEi,
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| 122 | fresnelCosineIntegral,fresnelSineIntegral,gamma,hypCosineIntegral,hypSineIntegral,norm, psi, sineIntegral, analyticalQuotient});
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[15131] | 123 | var terminalSymbols = new GroupSymbol(TerminalsName, new List<ISymbol> { constant, variableSymbol, binFactorVariable, factorVariable });
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[7696] | 124 | var realValuedSymbols = new GroupSymbol(RealValuedSymbolsName, new List<ISymbol>() { arithmeticSymbols, trigonometricSymbols, exponentialAndLogarithmicSymbols, specialFunctions, terminalSymbols });
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[5333] | 125 |
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[17072] | 126 | var powerSymbols = new GroupSymbol(PowerFunctionsName, new List<ISymbol> { square, pow, sqrt, root, cube, cubeRoot });
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[5333] | 127 |
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[6803] | 128 | var conditionSymbols = new GroupSymbol(ConditionsName, new List<ISymbol> { @if, variableCondition });
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| 129 | var comparisonSymbols = new GroupSymbol(ComparisonsName, new List<ISymbol> { gt, lt });
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[10910] | 130 | var booleanOperationSymbols = new GroupSymbol(BooleanOperatorsName, new List<ISymbol> { and, or, not, xor });
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[6803] | 131 | var conditionalSymbols = new GroupSymbol(ConditionalSymbolsName, new List<ISymbol> { conditionSymbols, comparisonSymbols, booleanOperationSymbols });
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[5333] | 132 |
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[8798] | 133 | var timeSeriesSymbols = new GroupSymbol(TimeSeriesSymbolsName, new List<ISymbol> { timeLag, integral, derivative, laggedVariable, autoregressiveVariable });
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[6803] | 134 | #endregion
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[5333] | 135 |
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[6803] | 136 | AddSymbol(realValuedSymbols);
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| 137 | AddSymbol(powerSymbols);
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| 138 | AddSymbol(conditionalSymbols);
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| 139 | AddSymbol(timeSeriesSymbols);
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[5333] | 140 |
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[6803] | 141 | #region subtree count configuration
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| 142 | SetSubtreeCount(arithmeticSymbols, 2, 2);
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| 143 | SetSubtreeCount(trigonometricSymbols, 1, 1);
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[7695] | 144 | SetSubtreeCount(pow, 2, 2);
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| 145 | SetSubtreeCount(root, 2, 2);
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| 146 | SetSubtreeCount(square, 1, 1);
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[17072] | 147 | SetSubtreeCount(cube, 1, 1);
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[7695] | 148 | SetSubtreeCount(sqrt, 1, 1);
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[17072] | 149 | SetSubtreeCount(cubeRoot, 1, 1);
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[6803] | 150 | SetSubtreeCount(exponentialAndLogarithmicSymbols, 1, 1);
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[17498] | 151 | foreach (var sy in specialFunctions.Symbols.Except(new[] { analyticalQuotient })) {
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[17072] | 152 | SetSubtreeCount(sy, 1, 1);
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| 153 | }
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| 154 | SetSubtreeCount(analyticalQuotient, 2, 2);
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| 155 |
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[6803] | 156 | SetSubtreeCount(terminalSymbols, 0, 0);
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[5333] | 157 |
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[6803] | 158 | SetSubtreeCount(@if, 3, 3);
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| 159 | SetSubtreeCount(variableCondition, 2, 2);
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| 160 | SetSubtreeCount(comparisonSymbols, 2, 2);
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| 161 | SetSubtreeCount(and, 2, 2);
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| 162 | SetSubtreeCount(or, 2, 2);
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| 163 | SetSubtreeCount(not, 1, 1);
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[10910] | 164 | SetSubtreeCount(xor, 2, 2);
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[5333] | 165 |
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[6803] | 166 | SetSubtreeCount(timeLag, 1, 1);
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| 167 | SetSubtreeCount(integral, 1, 1);
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| 168 | SetSubtreeCount(derivative, 1, 1);
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| 169 | SetSubtreeCount(laggedVariable, 0, 0);
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[8798] | 170 | SetSubtreeCount(autoregressiveVariable, 0, 0);
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[6803] | 171 | #endregion
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[5333] | 172 |
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[6819] | 173 | #region allowed child symbols configuration
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[6803] | 174 | AddAllowedChildSymbol(StartSymbol, realValuedSymbols);
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[9459] | 175 | AddAllowedChildSymbol(StartSymbol, powerSymbols);
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| 176 | AddAllowedChildSymbol(StartSymbol, conditionSymbols);
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| 177 | AddAllowedChildSymbol(StartSymbol, timeSeriesSymbols);
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| 178 | AddAllowedChildSymbol(StartSymbol, specialFunctions);
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| 179 |
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[6803] | 180 | AddAllowedChildSymbol(DefunSymbol, realValuedSymbols);
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[9459] | 181 | AddAllowedChildSymbol(DefunSymbol, powerSymbols);
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| 182 | AddAllowedChildSymbol(DefunSymbol, conditionSymbols);
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| 183 | AddAllowedChildSymbol(DefunSymbol, timeSeriesSymbols);
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| 184 | AddAllowedChildSymbol(DefunSymbol, specialFunctions);
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[5333] | 185 |
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[6803] | 186 | AddAllowedChildSymbol(realValuedSymbols, realValuedSymbols);
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| 187 | AddAllowedChildSymbol(realValuedSymbols, powerSymbols);
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| 188 | AddAllowedChildSymbol(realValuedSymbols, conditionSymbols);
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| 189 | AddAllowedChildSymbol(realValuedSymbols, timeSeriesSymbols);
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[7696] | 190 | AddAllowedChildSymbol(realValuedSymbols, specialFunctions);
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[5333] | 191 |
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[6803] | 192 | AddAllowedChildSymbol(powerSymbols, variableSymbol, 0);
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[7071] | 193 | AddAllowedChildSymbol(powerSymbols, laggedVariable, 0);
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[9459] | 194 | AddAllowedChildSymbol(powerSymbols, autoregressiveVariable, 0);
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[6803] | 195 | AddAllowedChildSymbol(powerSymbols, constant, 1);
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[9459] | 196 |
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[7695] | 197 | AddAllowedChildSymbol(square, realValuedSymbols, 0);
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[9459] | 198 | AddAllowedChildSymbol(square, conditionSymbols, 0);
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| 199 | AddAllowedChildSymbol(square, timeSeriesSymbols, 0);
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| 200 |
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[7695] | 201 | AddAllowedChildSymbol(sqrt, realValuedSymbols, 0);
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[9459] | 202 | AddAllowedChildSymbol(sqrt, conditionSymbols, 0);
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| 203 | AddAllowedChildSymbol(sqrt, timeSeriesSymbols, 0);
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[5333] | 204 |
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[6803] | 205 | AddAllowedChildSymbol(@if, comparisonSymbols, 0);
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| 206 | AddAllowedChildSymbol(@if, booleanOperationSymbols, 0);
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| 207 | AddAllowedChildSymbol(@if, conditionSymbols, 1);
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| 208 | AddAllowedChildSymbol(@if, realValuedSymbols, 1);
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| 209 | AddAllowedChildSymbol(@if, powerSymbols, 1);
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| 210 | AddAllowedChildSymbol(@if, timeSeriesSymbols, 1);
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| 211 | AddAllowedChildSymbol(@if, conditionSymbols, 2);
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| 212 | AddAllowedChildSymbol(@if, realValuedSymbols, 2);
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| 213 | AddAllowedChildSymbol(@if, powerSymbols, 2);
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| 214 | AddAllowedChildSymbol(@if, timeSeriesSymbols, 2);
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[5333] | 215 |
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[6803] | 216 | AddAllowedChildSymbol(booleanOperationSymbols, comparisonSymbols);
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| 217 | AddAllowedChildSymbol(comparisonSymbols, realValuedSymbols);
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| 218 | AddAllowedChildSymbol(comparisonSymbols, powerSymbols);
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| 219 | AddAllowedChildSymbol(comparisonSymbols, conditionSymbols);
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| 220 | AddAllowedChildSymbol(comparisonSymbols, timeSeriesSymbols);
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[5333] | 221 |
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[6803] | 222 | AddAllowedChildSymbol(variableCondition, realValuedSymbols);
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| 223 | AddAllowedChildSymbol(variableCondition, powerSymbols);
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| 224 | AddAllowedChildSymbol(variableCondition, conditionSymbols);
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| 225 | AddAllowedChildSymbol(variableCondition, timeSeriesSymbols);
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[5333] | 226 |
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[6803] | 227 |
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| 228 | AddAllowedChildSymbol(timeLag, realValuedSymbols);
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| 229 | AddAllowedChildSymbol(timeLag, powerSymbols);
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| 230 | AddAllowedChildSymbol(timeLag, conditionSymbols);
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| 231 |
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| 232 | AddAllowedChildSymbol(integral, realValuedSymbols);
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| 233 | AddAllowedChildSymbol(integral, powerSymbols);
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| 234 | AddAllowedChildSymbol(integral, conditionSymbols);
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| 235 |
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| 236 | AddAllowedChildSymbol(derivative, realValuedSymbols);
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| 237 | AddAllowedChildSymbol(derivative, powerSymbols);
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| 238 | AddAllowedChildSymbol(derivative, conditionSymbols);
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| 239 | #endregion
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[5333] | 240 | }
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[6803] | 241 |
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| 242 | public void ConfigureAsDefaultRegressionGrammar() {
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[7696] | 243 | Symbols.First(s => s is Average).Enabled = false;
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[17072] | 244 | Symbols.First(s => s is Absolute).Enabled = false;
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[17101] | 245 | Symbols.First(s => s is HyperbolicTangent).Enabled = false;
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[7696] | 246 | Symbols.First(s => s.Name == TrigonometricFunctionsName).Enabled = false;
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| 247 | Symbols.First(s => s.Name == PowerFunctionsName).Enabled = false;
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| 248 | Symbols.First(s => s.Name == SpecialFunctionsName).Enabled = false;
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| 249 | Symbols.First(s => s.Name == ConditionalSymbolsName).Enabled = false;
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| 250 | Symbols.First(s => s.Name == TimeSeriesSymbolsName).Enabled = false;
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[6803] | 251 | }
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| 252 |
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| 253 | public void ConfigureAsDefaultClassificationGrammar() {
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[7696] | 254 | Symbols.First(s => s is Average).Enabled = false;
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| 255 | Symbols.First(s => s is VariableCondition).Enabled = false;
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[10910] | 256 | Symbols.First(s => s is Xor).Enabled = false;
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[17072] | 257 | Symbols.First(s => s is Absolute).Enabled = false;
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[17101] | 258 | Symbols.First(s => s is HyperbolicTangent).Enabled = false;
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[7696] | 259 | Symbols.First(s => s.Name == TrigonometricFunctionsName).Enabled = false;
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| 260 | Symbols.First(s => s.Name == ExponentialFunctionsName).Enabled = false;
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| 261 | Symbols.First(s => s.Name == SpecialFunctionsName).Enabled = false;
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| 262 | Symbols.First(s => s.Name == PowerFunctionsName).Enabled = false;
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| 263 | Symbols.First(s => s.Name == TimeSeriesSymbolsName).Enabled = false;
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[6803] | 264 | }
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[8798] | 265 |
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| 266 | public void ConfigureAsDefaultTimeSeriesPrognosisGrammar() {
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| 267 | Symbols.First(s => s is Average).Enabled = false;
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[17072] | 268 | Symbols.First(s => s is Absolute).Enabled = false;
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[17101] | 269 | Symbols.First(s => s is HyperbolicTangent).Enabled = false;
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[8798] | 270 | Symbols.First(s => s.Name == TrigonometricFunctionsName).Enabled = false;
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| 271 | Symbols.First(s => s.Name == PowerFunctionsName).Enabled = false;
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| 272 | Symbols.First(s => s.Name == ConditionalSymbolsName).Enabled = false;
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| 273 | Symbols.First(s => s.Name == SpecialFunctionsName).Enabled = false;
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| 274 |
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[10020] | 275 | Symbols.Single(s => s.Name == "Variable").Enabled = false;
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[8798] | 276 | Symbols.First(s => s.Name == TimeSeriesSymbolsName).Enabled = true;
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| 277 | Symbols.First(s => s is Derivative).Enabled = false;
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| 278 | Symbols.First(s => s is Integral).Enabled = false;
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| 279 | Symbols.First(s => s is TimeLag).Enabled = false;
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| 280 | }
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[5333] | 281 | }
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| 282 | }
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