private ISymbolicExpressionTreeNode GenTreeShiftStdDist(string variable, double m_org, double s_org, double m_tar, double s_tar)
{
// x - m_org
var substractionNode = new Subtraction().CreateTreeNode();
var xNode = CreateVariableTreeNode(variable, "x");
var m_orgNode = CreateConstantTreeNode("m_org", m_org);
substractionNode.AddSubtree(xNode);
substractionNode.AddSubtree(m_orgNode);
// (x - m_org) / s_org
var divisionNode = new Division().CreateTreeNode();
var s_orgNode = CreateConstantTreeNode("s_org", s_org);
divisionNode.AddSubtree(substractionNode);
divisionNode.AddSubtree(s_orgNode);
// ((x - m_org) / s_org ) * s_tar
var multiplicationNode = new Multiplication().CreateTreeNode();
var s_tarNode = CreateConstantTreeNode("s_tar", s_tar);
multiplicationNode.AddSubtree(divisionNode);
multiplicationNode.AddSubtree(s_tarNode);
// ((x - m_org) / s_org ) * s_tar + m_tar
var additionNode = new Addition().CreateTreeNode();
var m_tarNode = CreateConstantTreeNode("m_tar", m_tar);
additionNode.AddSubtree(multiplicationNode);
additionNode.AddSubtree(m_tarNode);
return(additionNode);
}
private ISymbolicExpressionTreeNode GenTreeDiv_1_x()
{
// 1 / x
var divNode = new Division().CreateTreeNode();
var oneNode = CreateConstantTreeNode("1", 1.0);
var xNode = CreateVariableTreeNode(column, "x");
divNode.AddSubtree(oneNode);
divNode.AddSubtree(xNode);
return(divNode);
}
private ISymbolicExpressionTreeNode GenerateInverseModelForLinearTransformation()
{
var linearTransformation = (LinearTransformation)transformation;
var kValue = linearTransformation.Multiplier;
var dValue = linearTransformation.Addend;
// x - d
var substractionNode = new Subtraction().CreateTreeNode();
var dNode = CreateConstantTreeNode("d", dValue);
var xNode = CreateVariableTreeNode(column, "x");
substractionNode.AddSubtree(xNode);
substractionNode.AddSubtree(dNode);
// ( x - d ) / k
var divisionNode = new Division().CreateTreeNode();
var kNode = CreateConstantTreeNode("k", kValue);
divisionNode.AddSubtree(substractionNode);
divisionNode.AddSubtree(kNode);
return(divisionNode);
}
