public static ResultSortedByTopsisFrm CreateInstance()
{
if (frm == null || frm.IsDisposed)
{
frm = new ResultSortedByTopsisFrm();
}
return(frm);
}
public static ResultSortedByTopsisFrm CreateInstance(List <IdealSolutionByTopsisEntity> lst,
double[] arr, string[] arrTgt, string name)
{
if (frm == null || frm.IsDisposed)
{
frm = new ResultSortedByTopsisFrm(lst, arr, arrTgt, name);
}
return(frm);
}
private void ToolStripMenuItem_Sort_Click(object sender, EventArgs e)
{
//double[,] testarr = new double [,]{ { 1, 2, 3, 4, 5, 6 }, { 2, 3, 4, 5, 6, 7 },{3,4,5,6,7,8 },{4,5,6,7,8,9 }};
List <double> lst_MaxVal = new List <double>();
List <double> lst_MinVal = new List <double>();
//定义正理想解的距离值列表
List <double> lst_DistPIS = new List <double>();
//定义负理想解的距离值列表
List <double> lst_DistNIS = new List <double>();
//定义用于排序的最终值的列表
List <double> lst_Ci = new List <double>();
//定义理想值列表，用于排序
List <IdealSolutionByTopsisEntity> lst_ISBTE = new List <IdealSolutionByTopsisEntity>();
double maxVal = 0, minVal = 0;
TopsisDecisionMatrixOperation tdmo = new TopsisDecisionMatrixOperation();
//double[,] arr = new double[dgv_DecisionMatrix.RowCount, dgv_DecisionMatrix.ColumnCount - 2];
double[,] arr_paraValNormalized = tdmo.ToNormalize(DataSourceToDataTable.GetDgvToArray(dgv_DecisionMatrix, 0, 2));
//double[,] arr = tdmo.ToNormalize(testarr);
double[,] arr_paraValByWgt = new double[arr_paraValNormalized.GetLength(0), arr_paraValNormalized.GetLength(1)];
int counter = 0;
for (int j = 0; j < arr_paraValNormalized.GetLength(1); j++)
{
//arrColumnMaxVal[j] = arr[]
//minVal[j, 0] = arr_paraValByWgt[i, j];
for (int i = 0; i < arr_paraValNormalized.GetLength(0); i++)
{
//minVal =
arr_paraValByWgt[i, j] = arr_paraValNormalized[i, j] * lst_paraWgt[j];
if (i == 0)
{
minVal = arr_paraValByWgt[i, j];
}
if (minVal > arr_paraValByWgt[i, j])
{
minVal = arr_paraValByWgt[i, j];
}
if (arr_paraValByWgt[i, j] > maxVal)
{
maxVal = arr_paraValByWgt[i, j];
}
}
lst_MaxVal.Add(maxVal);
maxVal = 0;
lst_MinVal.Add(minVal);
minVal = 0;
}
lst_DistPIS = tdmo.ToGetDistToPIS(arr_paraValByWgt, lst_MaxVal);
lst_DistNIS = tdmo.ToGetDistToNIS(arr_paraValByWgt, lst_MinVal);
string[] arr_TgtName = new string[lst_paraTgt.Count];
lst_paraTgt.CopyTo(arr_TgtName, 0);
for (int i = 0; i < lst_DistNIS.Count; i++)
{
lst_ISBTE.Add(new IdealSolutionByTopsisEntity
{
para_Tgt = arr_TgtName[i],
para_PostiveDist = lst_DistPIS[i],
para_NegativeDist = lst_DistNIS[i],
para_Ci = lst_DistNIS[i] / (lst_DistNIS[i] + lst_DistPIS[i])
});
}
lst_ISBTE.Sort((x, y) => x.para_Ci.CompareTo(y.para_Ci));
counter = lst_ISBTE.Count;
foreach (IdealSolutionByTopsisEntity var in lst_ISBTE)
{
var.para_Rank = counter;
counter--;
}
lst_ISBTE.Sort((x, y) => x.para_Rank.CompareTo(y.para_Rank));
double [] arr_Ci = lst_ISBTE.Select(x => x.para_Ci).ToArray();
string [] arr_Tgt = lst_ISBTE.Select(x => x.para_Tgt).ToArray();
ResultSortedByTopsisFrm rsbtf = ResultSortedByTopsisFrm.CreateInstance(lst_ISBTE, arr_Ci, arr_Tgt, strDgvName);
rsbtf.dgv_SortedByTopsis.DataSource = lst_ISBTE;
rsbtf.Show();
}