Package org.encog.ml.prg

Examples of org.encog.ml.prg.EncogProgram.evaluate()

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public class TestExpressionVar extends TestCase {
  public void testAssignment() {
    EncogProgram expression = new EncogProgram("a");
    expression.getVariables().setVariable("a",5);
    Assert.assertEquals(5,expression.evaluate().toFloatValue(),Encog.DEFAULT_DOUBLE_EQUAL);
  }
 
  public void testNegAssignment() {
    EncogProgram expression = new EncogProgram("-a");
    expression.getVariables().setVariable("a",5);
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  }
 
  public void testNegAssignment() {
    EncogProgram expression = new EncogProgram("-a");
    expression.getVariables().setVariable("a",5);
    Assert.assertEquals(-5,expression.evaluate().toFloatValue(),Encog.DEFAULT_DOUBLE_EQUAL);
  }
 
  public void test2NegAssignment() {
    EncogProgram expression = new EncogProgram("--a");
    expression.getVariables().setVariable("a",5);
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  }
 
  public void test2NegAssignment() {
    EncogProgram expression = new EncogProgram("--a");
    expression.getVariables().setVariable("a",5);
    Assert.assertEquals(5,expression.evaluate().toFloatValue(),Encog.DEFAULT_DOUBLE_EQUAL);
  }
 
  public void testAssignment2() {
    EncogProgram expression = new EncogProgram("cccc*(aa+bbb)");
    expression.getVariables().setVariable("aa",1);
 
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  public void testAssignment2() {
    EncogProgram expression = new EncogProgram("cccc*(aa+bbb)");
    expression.getVariables().setVariable("aa",1);
    expression.getVariables().setVariable("bbb",2);
    expression.getVariables().setVariable("cccc",3);
    Assert.assertEquals(9,expression.evaluate().toFloatValue(),Encog.DEFAULT_DOUBLE_EQUAL);
  }
 
  public void testAssignment3() {
    EncogProgram expression = new EncogProgram("v1+v2+v3");
    expression.getVariables().setVariable("v1",1);
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  public void testAssignment3() {
    EncogProgram expression = new EncogProgram("v1+v2+v3");
    expression.getVariables().setVariable("v1",1);
    expression.getVariables().setVariable("v2",2);
    expression.getVariables().setVariable("v3",3);
    Assert.assertEquals(6,expression.evaluate().toFloatValue(),Encog.DEFAULT_DOUBLE_EQUAL);
  }
 
  public void testVarComplex() {
    EncogProgram expression = new EncogProgram("(x^((1+((x^-8)-(4^x)))^(((-7/2)-(0--5.8))/x)))");
    expression.getVariables().setVariable("x",10);
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  }
 
  public void testVarComplex() {
    EncogProgram expression = new EncogProgram("(x^((1+((x^-8)-(4^x)))^(((-7/2)-(0--5.8))/x)))");
    expression.getVariables().setVariable("x",10);
    Assert.assertTrue(Double.isNaN(expression.evaluate().toFloatValue()));
  }
 

}
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