//Method called every time a new numericUpDown (+ associated Label) has to be added to pnlPredInputs
public void setInputNumUpDown(int count, Variable curVariable)
{
NumericUpDown curNum = new NumericUpDown();
Label curLabel = new Label();
if (count == 0)
{
curNum = numPredInput0;
curNum.Visible = true;
curLabel = lblPredInp0;
curLabel.Visible = true;
}
else
{
//---- New numUpDown
curNum.Name = "numPredInput" + count.ToString();
curNum.TextAlign = numPredInput0.TextAlign;
curNum.Width = numPredInput0.Width;
curNum.Font = numPredInput0.Font;
curNum.Cursor = numPredInput0.Cursor;
curNum.ValueChanged += new System.EventHandler(numPredInput_ValueChanged);
pnlPredInputs.Controls.Add(curNum);
curNum.Location = new Point(numPredInput0.Location.X, numPredInput0.Location.Y + 50 * count);
//-----
//---- New Label
curLabel.Name = "lblPredInp" + count.ToString();
curLabel.Font = lblPredInp0.Font;
curLabel.ForeColor = lblPredInp0.ForeColor;
pnlPredInputs.Controls.Add(curLabel);
curLabel.Location = new Point(lblPredInp0.Location.X, lblPredInp0.Location.Y + 50 * count);
//----
}
curNum.Tag = curVariable;
updateMinMaxInputNum(curNum);
curLabel.Text = curVariable.input.displayedShortName + ":";
curLabel.Refresh();
}
public List<double> realVals; //Y (independent variable) values as read from the input file
#endregion Fields
#region Constructors
public ValidCombination()
{
realVals = new List<double>();
calcVals = new List<RowVal>();
errors = new List<double>();
coeffs = new PolCoeffs();
dependentVars = new Combination();
independentVar = new Variable();
assessment = new Assessment();
}
public CombinationItem()
{
variable = new Variable();
operation = new Operation();
}
//Method actually creating a new ValidCombination variable and performing preliminary validity checks
private ValidCombination newCombination(Combination curCombination, Variable yVar, List<Input> inputs, List<ValidCombination> allValidCombinations, Config curConfig)
{
//Performing the regression and the corresponding analysis to determine whether this specific combination should be stored or not
CombValues xVals = Common.getCombinationListVals(curCombination, inputs);
CombValues yVals = new CombValues();
yVals.combination = new Combination();
int maxDec = inputs[yVar.index].vals.Max(x => x <= Int32.MaxValue ? ((decimal)x - Convert.ToInt32((decimal)x)).ToString().Length - 2 : 0);
if (maxDec < 0) maxDec = 0;
Variable curVariable = new Variable() { index = yVar.index, input = inputs[yVar.index], noDec = maxDec };
CombinationItem curItem = new CombinationItem() { variable = curVariable, operation = new Operation(), exponent = 1.0 };
yVals.combination.items.Add(curItem);
for (int row = 0; row < inputs[yVar.index].vals.Count; row++)
{
RowVal curRowVal = new RowVal();
curRowVal.value = inputs[yVar.index].vals[row];
curRowVal.weights.Add(1.0);
yVals.values.Add(curRowVal);
}
Analysis curAnalysis = new Analysis();
ValidCombination curValidCombination = curAnalysis.createValidComb(curCombination, inputs, xVals, yVals, curConfig, true);
if (curValidCombination != null && allValidCombinations.Count > 0)
{
if (alreadyStored(curValidCombination, allValidCombinations))
{
curValidCombination = null;
}
}
return curValidCombination;
}
//Method starting the whole combinatorics process (and, subsequently, the calculations one) for the given independent variable and all the remaining "Input" (columns)
private Results mainCombinations(Results curResults, List<Input> inputs, Variable indepVar)
{
//Loop accounting for combinations consisting in just one variable
for (int col = 0; col < inputs.Count; col++)
{
if (cancelSim) return curResults;
if (col != indepVar.index) curResults.combinations = addCombination(inputs, new List<int> { col }, curResults.config, curResults.combinations, indepVar);
}
//Main loop combining all the variables among them, together with all the exponents and operations
for (int col = 0; col < inputs.Count - 1; col++) //All the columns from the start until the previous to the last one
{
if (cancelSim) return curResults;
if (col == indepVar.index) continue;
MainCalcs.bgwMain.ReportProgress(0, "Independent variable: " + indepVar.input.displayedName + " - Analysing all the combinations involving: " + inputs[col].displayedName + Environment.NewLine + "Valid solutions so far: " + curResults.combinations.Count.ToString());
for (int col2 = col; col2 < inputs.Count; col2++) //All the columns from "col" to the last one
{
if (cancelSim) return curResults;
if (col2 == indepVar.index) continue;
int maxComb = inputs.Count - 1 - col2;
for (int comb = 0; comb < maxComb; comb++) // All the combinations of columns. For example: with 1, 2, 3, 4, when col is 1, there are upto 3 (e.g., 2-3-4)
{
if (cancelSim) return curResults;
int col3 = col2;
List<int> curList = new List<int>();
curList.Add(col);
for (int comb2 = 0; comb2 <= comb; comb2++)
{
col3 = col3 + 1;
if (col3 != indepVar.index)
{
curList.Add(col3); //List including the variables being accounted in the current combination
}
}
curResults.combinations = addCombination(inputs, curList, curResults.config, curResults.combinations, indepVar);
}
}
}
return curResults;
}
//Method called from the main combinatorics loops for multivariate cases above (addMulti). Its whole purpose is reducing the size of the loops.
//It includes the "more internal loops", the ones creating the corresponding ValidCombination and adding it to the list of all the combinations so far
private List<ValidCombination> internalLoop(int[] curOpers, int[] curExps, List<ValidCombination> allCombinations, Config curConfig, List<int> indices, List<Input> inputs, Variable indepVar)
{
for (int rel = 0; rel < curConfig.operations.Count; rel++)
{
if (cancelSim) return allCombinations;
Combination curCombination = new Combination();
curOpers[indices.Count - 2] = rel;
for (int i = 0; i < indices.Count; i++)
{
int genIndex = indices[i];
//The cast to decimal type is included in order to avoid problems with the double floating point (e.g., without casting to decimal, 10.55 wouldn't be found)
int maxDec = inputs[genIndex].vals.Max(x => x <= Int32.MaxValue ? ((decimal)x - Convert.ToInt32((decimal)x)).ToString().Length - 2 : 0);
if (maxDec < 0) maxDec = 0;
Variable curVariable = new Variable { index = genIndex, input = inputs[genIndex], noDec = maxDec };
CombinationItem curItem = new CombinationItem() { variable = curVariable, exponent = curConfig.exponents[curExps[i]], operation = curConfig.operations[curOpers[i]] };
curCombination.items.Add(curItem);
}
allCombinations = addToAllCombinations(curCombination, inputs, curConfig, allCombinations, indepVar);
}
return allCombinations;
}
//This method creates a new "Variable" instance for the given independent variable (y) from the original "Input" one and starts the combinating/calculating processes
private Results combsForIndep(List<Input> allInputs, int curIndex, Results curResults)
{
int maxDec = allInputs[curIndex].vals.Max(x => x <= Int32.MaxValue ? ((decimal)x - Convert.ToInt32((decimal)x)).ToString().Length - 2 : 0);
if (maxDec < 0) maxDec = 0;
Variable indepVar = new Variable { index = curIndex, input = allInputs[curIndex], noDec = maxDec };
return mainCombinations(curResults, allInputs, indepVar);
}
//Method starting the creation of the corresponding "ValidCombination" and, eventually, storing it in the list including all the ones so far
private List<ValidCombination> addToAllCombinations(Combination curCombination, List<Input> inputs, Config curConfig, List<ValidCombination> allCombinations, Variable indepVar)
{
ValidCombination curValid = newCombination(curCombination, indepVar, inputs, allCombinations, curConfig);
if (curValid != null)
{
if (allCombinations.Count >= curConfig.maxNoCombs)
{
allCombinations = allCombinations.OrderByDescending(x => x.assessment.globalRating).ToList();
if (curValid.assessment.globalRating > allCombinations[allCombinations.Count - 1].assessment.globalRating)
{
allCombinations.RemoveAt(allCombinations.Count - 1);
}
else
{
curValid = null;
}
}
if (curValid != null)
{
if (curValid.dependentVars.items.Count < 1)
{
if (curValid.coeffs.B != 0.0 || curValid.coeffs.C != 0.0) curValid = null;
}
}
}
if(curValid != null) allCombinations.Add(curValid);
return allCombinations;
}
//Method performing all the required actions to create the combinations under the most difficult conditions (i.e., more than one variable), that is: perform all the
//combinations among variables, exponents and operations; call the methods in charge of creating the corresponding "ValidCombination"; and, eventually, add the new
//instance to the list of all the valid combinations so far
//NOTA DEL CREADOR: modestia aparte, esta función es una puta obra de arte (en Spanish porque suena mejor :))
private List<ValidCombination> addMulti(List<Input> inputs, List<int> indices, Config curConfig, List<ValidCombination> allCombinations, Variable indepVar)
{
int[] curExps = new int[indices.Count];
int[] curOpers = new int[indices.Count];
//The code below these lines is fairly complicated as far as it has to deal with many variations (i.e., all the possible combinations among exponents, operations and variables).
//In any case, it should be noted that a relevant "combinatorics effort" has already been done before calling this function, that is: setting all the possible combinations of variables.
//The combinations are created as shown in the following example (vars: var1, var2, var3; exps: 1, 2; operations: *, +):
// var1^1 * var2^1 * var3^1
// var1^1 * var2^1 + var3^1
// var1^1 * var2^1 * var3^2
// var1^1 * var2^1 + var3^2
// var1^1 + var2^1 * var3^1
// var1^1 + var2^1 + var3^1
// var1^1 + var2^1 * var3^2
//etc.
ExpRelUpdate obj1 = new ExpRelUpdate(indices.Count - 2, curConfig.exponents.Count - 1, indices.Count, curExps);
curExps[obj1.index] = -1;
while (!obj1.completed)
{
obj1 = updateObjs13(obj1, true);
if (obj1.completed) break;
ExpRelUpdate obj2 = new ExpRelUpdate(indices.Count - 2, curConfig.exponents.Count - 1, indices.Count, curExps);
while (!obj2.completed)
{
for (int i = 0; i < indices.Count; i++)
{
curOpers[i] = 0;
}
ExpRelUpdate obj3 = new ExpRelUpdate(indices.Count - 2, curConfig.operations.Count - 1, indices.Count, curOpers);
curOpers[obj3.index] = -1;
while (!obj3.completed)
{
obj3 = updateObjs13(obj3, false);
if (obj3.completed) break;
for (int exp = 0; exp < curConfig.exponents.Count; exp++)
{
if (cancelSim) break;
curExps[indices.Count - 1] = exp;
allCombinations = internalLoop(curOpers, curExps, allCombinations, curConfig, indices, inputs, indepVar);
}
}
obj2 = updateObj2(obj2);
if (obj2.otherProp)
{
obj1.completed = true;
break;
}
}
}
return allCombinations;
}
//Method in charge of putting together all the inputs for the given combination (i.e., variables, exponents and operations) and bring together all the remaining factors (e.g., suitability of the fit)
//to form the associated ValidCombination and add it to the list of valid combinations created so far
private List<ValidCombination> addCombination(List<Input> inputs, List<int> indices, Config curConfig, List<ValidCombination> allCombinations, Variable indepVar)
{
if (indices.Count == 1)
{
//Only one variable is accounted for and thus the whole combinatorial process will consist in accounting for the different exponents
int genIndex = indices[0];
for (int i = 0; i < curConfig.exponents.Count; i++)
{
if (cancelSim) break;
Combination curCombination = new Combination();
//The cast to decimal type is included in order to avoid problems from the double floating point (e.g., 10.55)
int maxDec = inputs[genIndex].vals.Max(x => x <= Int32.MaxValue ? ((decimal)x - Convert.ToInt32((decimal)x)).ToString().Length - 2 : 0);
if (maxDec < 0) maxDec = 0;
Variable curVariable = new Variable { index = genIndex, input = inputs[genIndex], noDec = maxDec };
CombinationItem curItem = new CombinationItem() { variable = curVariable, exponent = curConfig.exponents[i], operation = curConfig.operations[0] };
curCombination.items.Add(curItem);
allCombinations = addToAllCombinations(curCombination, inputs, curConfig, allCombinations, indepVar);
}
}
else
{
//Various variables are accounted for and thus everything (i.e., variables, exponents & operations) have to be brought into picture
allCombinations = addMulti(inputs, indices, curConfig, allCombinations, indepVar);
}
return allCombinations;
}