public static void LoopCI(DataGridView dataGridView1, RichTextBox richTextBox1, string Cols, string Tail, string Statistics, double Significance)
{
//这个函数的目的是循环对所要求的变量进行参数估计
char[] separator = { ',' };
string[] AllCols = Cols.Split(separator);
string result = "";
richTextBox1.AppendText("参数估计: ");
richTextBox1.AppendText(Statistics);
richTextBox1.AppendText("\r\n");
richTextBox1.AppendText("置信度: ");
richTextBox1.AppendText(Significance.ToString());
richTextBox1.AppendText("\t");
richTextBox1.AppendText(Tail);
richTextBox1.AppendText("\r\n");
richTextBox1.AppendText(Header);
int ColNum = 0;
foreach (string EachCol in AllCols)
{
if (Int32.TryParse(EachCol, out ColNum))
{
string[] Numbers = Tabulation.ReadVector(MainForm.MainDT, ColNum - 1).ToArray();
result = CI(dataGridView1.Columns[ColNum - 1].Name, Numbers, Tail, Statistics, Significance);
richTextBox1.AppendText(result);
}
}
}
public static void MultiCorr(DataTable dt, int [] ColNums, RichTextBox richTextBox1)
{
StringBuilder Result = new StringBuilder();
//相关系数输出是一个矩阵，因此要有行名和列名
//例如:
// 列1 列2 列3
//列1 1 0 0
//列2 0 1 0
//列3 0 1 1
//自身的相关系数一定是1
Result.Append(StrManipulation.PadLeftX(" ", ' ', 12));
Result.Append("\t");
foreach (int EachCol in ColNums)
{
Result.Append(StrManipulation.PadLeftX(dt.Columns[EachCol].ColumnName, ' ', 12));
Result.Append("\t");
}
Result.Append("\r\n");
foreach (int EachCol in ColNums)
{
Result.Append(StrManipulation.PadLeftX(dt.Columns[EachCol].ColumnName, ' ', 12));
Result.Append("\t");
foreach (int EveryCol in ColNums)
{
if (EachCol == EveryCol)
{
Result.Append(StrManipulation.PadLeftX("1.000", ' ', 12));
Result.Append("\t");
}
else
{
string[] NumberSeries1 = Tabulation.ReadVector(dt, EachCol).ToArray();
string[] NumberSeries2 = Tabulation.ReadVector(dt, EveryCol).ToArray();
Result.Append(StrManipulation.PadLeftX(MathV.NumberPolish(Corr(NumberSeries1, NumberSeries2).ToString()), ' ', 12));
Result.Append("\t");
}
}
Result.Append("\r\n");
}
richTextBox1.AppendText(Result.ToString());
MainForm.S.richTextBox1.Select(); //让RichTextBox获得焦点
MainForm.S.richTextBox1.Select(MainForm.S.richTextBox1.TextLength, 0); //将插入符号置于文本结束处
MainForm.S.richTextBox1.ScrollToCaret();
}
private static string AddNums(ref string expression, List <string> VariableList, DataTable dt, ref List <int> BlackList)
{
VariableList = VariableList.Distinct().ToList();
int VarCount = VariableList.Count;
StringBuilder Sequence = new StringBuilder();
string [][] Numbers = new string[VarCount][];
for (int i = 0; i < VarCount; i++)
{
Numbers[i] = Tabulation.ReadVector(dt, Convert.ToInt32(VariableList[i].Trim('x')) - 1).ToArray();
}
int RowsCount = dt.Rows.Count;
//List<int> BlackList = new List<int>();
double Temp = 0;
int IsNaRow = 0;
//IsNaRow = 0即该行无空格或错误，否则为1
int RealNumbers = 0;
for (int i = 0; i < RowsCount; i++)
{
for (int j = 0; j < VarCount; j++)
{
if (double.TryParse(Numbers[j][i], out Temp))
{
continue;
}
IsNaRow = 1;
}
if (IsNaRow == 1)
{
BlackList.Add(i);
IsNaRow = 0;
}
else
{
RealNumbers++;
}
}
StringBuilder AddNums = new StringBuilder();
int NumCount = 0;
for (int i = 0; i < VarCount; i++)
{
Sequence.Append("double[] ");
Sequence.Append(VariableList[i]);
Sequence.Append(" = new double[]{");
AddNums.Clear();
NumCount = Numbers[i].Length;
for (int j = 0; j < NumCount; j++)
{
if (BlackList.IndexOf(j) == -1)
{
AddNums.Append(Numbers[i][j]);
AddNums.Append(",");
}
}
Sequence.Append(AddNums.ToString().TrimEnd(','));
Sequence.Append("};");
expression = expression.Replace(VariableList[i], VariableList[i] + "[i]");
}
Sequence.Append("int len = ");
Sequence.Append(RealNumbers.ToString());
Sequence.Append(";");
return(Sequence.ToString());
}
private void button_Anova_Click(object sender, EventArgs e)
{
char[] separator = { ',' };
string[] AllCols = textBox_Cols.Text.Split(separator);
int ColNum = 0;
int Cols_count = 0;
int Cols_length = AllCols.Length; //变量数
int[] Row_length = new int[Cols_length]; //每个变量长度
int Total_length = 0; //总单元数
string[][] Numbers = new string[Cols_length][];
foreach (string EachCol in AllCols)
{
if (Int32.TryParse(EachCol, out ColNum))
{
Row_length[Cols_count] = 0;
Numbers[Cols_count] = Tabulation.ReadVector(MainForm.MainDT, ColNum - 1).ToArray();
foreach (string value in Numbers[Cols_count])
{
if (value != "" && value != null)
{
Row_length[Cols_count]++;
}
}
Total_length += Row_length[Cols_count];
//MessageBox.Show("变量" + Cols_count.ToString());
//MessageBox.Show("变量长度" + Total_length.ToString());
}
Cols_count++;
}
//计算开始
BigDecimal sum_all = 0;
BigDecimal[] sum_col = new BigDecimal[Cols_length];
BigDecimal[] xjbar = new BigDecimal[Cols_length];
for (int i = 0; i < Cols_length; i++)
{
sum_col[i] = 0;
foreach (BigDecimal value in Numbers[i])
{
sum_all = sum_all + value;
sum_col[i] = sum_col[i] + value;
xjbar[i] = sum_col[i] / Row_length[i];
}
}
BigDecimal xbarbar = sum_all / Total_length;
BigDecimal SST = 0;
BigDecimal SSA = 0;
BigDecimal SSW = 0;
BigDecimal[] SSW_list = new BigDecimal[Cols_length];
for (int i = 0; i < Cols_length; i++)
{
SSW_list[i] = 0;
foreach (BigDecimal var in Numbers[i])
{
SST = SST + (var - xbarbar) * (var - xbarbar);
SSW_list[i] = SSW_list[i] + (var - xjbar[i]) * (var - xjbar[i]);
}
SSA = SSA + Row_length[i] * (xjbar[i] - xbarbar) * (xjbar[i] - xbarbar);
SSW = SSW + SSW_list[i];
}
BigDecimal MSA = SSA / (Cols_length - 1);
BigDecimal MSW = SSW / (Total_length - Cols_length);
BigDecimal MST = SST / (Total_length - 1);
BigDecimal Fvalue = MSA / MSW;
BigDecimal Pvalue = Stat.FDIST(Convert.ToDouble(Fvalue.ToString()), Cols_length - 1, Total_length - 1);
MainForm.S.richTextBox1.AppendText(StrManipulation.PadLeftX(StrManipulation.VariableNamePolish("方差分析"), ' ', 12));
MainForm.S.richTextBox1.AppendText("\r\n");
MainForm.S.richTextBox1.AppendText(StrManipulation.PadLeftX(StrManipulation.VariableNamePolish("变量名："), ' ', 12));
MainForm.S.richTextBox1.AppendText("\t");
MainForm.S.richTextBox1.AppendText(textBox_VarNames.Text);
MainForm.S.richTextBox1.AppendText("\r\n");
MainForm.S.richTextBox1.AppendText(StrManipulation.PadLeftX(StrManipulation.VariableNamePolish("F值："), ' ', 12));
MainForm.S.richTextBox1.AppendText("\t");
MainForm.S.richTextBox1.AppendText(StrManipulation.PadLeftX(MathV.NumberPolish(Fvalue.ToString()), ' ', 12));
MainForm.S.richTextBox1.AppendText("\r\n");
MainForm.S.richTextBox1.AppendText(StrManipulation.PadLeftX(StrManipulation.VariableNamePolish("P值："), ' ', 12));
MainForm.S.richTextBox1.AppendText("\t");
MainForm.S.richTextBox1.AppendText(StrManipulation.PadLeftX(MathV.NumberPolish(Pvalue.ToString()), ' ', 12));
MainForm.S.richTextBox1.AppendText("\r\n");
MainForm.S.richTextBox1.AppendText(Header);
MainForm.S.richTextBox1.AppendText(StrManipulation.PadLeftX(StrManipulation.VariableNamePolish("组内"), ' ', 12));
MainForm.S.richTextBox1.AppendText("\t");
MainForm.S.richTextBox1.AppendText(StrManipulation.PadLeftX(MathV.NumberPolish((Cols_length - 1).ToString()), ' ', 12));
MainForm.S.richTextBox1.AppendText("\t");
MainForm.S.richTextBox1.AppendText(StrManipulation.PadLeftX(MathV.NumberPolish(SSA.ToString()), ' ', 12));
MainForm.S.richTextBox1.AppendText("\t");
MainForm.S.richTextBox1.AppendText(StrManipulation.PadLeftX(MathV.NumberPolish(MSA.ToString()), ' ', 12));
MainForm.S.richTextBox1.AppendText("\r\n");
MainForm.S.richTextBox1.AppendText(StrManipulation.PadLeftX(StrManipulation.VariableNamePolish("组间"), ' ', 12));
MainForm.S.richTextBox1.AppendText("\t");
MainForm.S.richTextBox1.AppendText(StrManipulation.PadLeftX(MathV.NumberPolish((Total_length - Cols_length).ToString()), ' ', 12));
MainForm.S.richTextBox1.AppendText("\t");
MainForm.S.richTextBox1.AppendText(StrManipulation.PadLeftX(MathV.NumberPolish(SSW.ToString()), ' ', 12));
MainForm.S.richTextBox1.AppendText("\t");
MainForm.S.richTextBox1.AppendText(StrManipulation.PadLeftX(MathV.NumberPolish(MSW.ToString()), ' ', 12));
MainForm.S.richTextBox1.AppendText("\r\n");
MainForm.S.richTextBox1.AppendText(StrManipulation.PadLeftX(StrManipulation.VariableNamePolish("总"), ' ', 12));
MainForm.S.richTextBox1.AppendText("\t");
MainForm.S.richTextBox1.AppendText(StrManipulation.PadLeftX(MathV.NumberPolish((Total_length - 1).ToString()), ' ', 12));
MainForm.S.richTextBox1.AppendText("\t");
MainForm.S.richTextBox1.AppendText(StrManipulation.PadLeftX(MathV.NumberPolish(SST.ToString()), ' ', 12));
MainForm.S.richTextBox1.AppendText("\t");
MainForm.S.richTextBox1.AppendText(StrManipulation.PadLeftX(MathV.NumberPolish(MST.ToString()), ' ', 12));
MainForm.S.richTextBox1.AppendText("\r\n");
}
public static string HypothesisTesting(DataTable MainDT, string ColName,
string Statistics, string Operation, string Tail, double Significance, double NullHypothesis)
{
//假设检验
//Statistics为统计量，Operation为运算(>,<,=)
//Tail为单尾双尾，这里内容为双侧、左单侧、右单侧
//Significance为显著性水平
int ColNum = Tabulation.FindCol(MainDT, ColName);
string[] Numbers = Tabulation.ReadVector(MainDT, ColNum).ToArray();
StringBuilder Result = new StringBuilder();
Result.Append("假设检验: ");
Result.Append(Statistics);
Result.Append("\r\n");
Result.Append("显著性水平: ");
Result.Append(Significance.ToString());
Result.Append("\t");
Result.Append(Tail);
Result.Append("\r\n原假设: ");
Result.Append(Statistics);
Result.Append(" ");
Result.Append(Operation);
Result.Append(" ");
Result.Append(NullHypothesis.ToString());
Result.Append("\r\n备择假设: ");
Result.Append(Statistics);
Result.Append(" ");
if (Operation == "=")
{
Result.Append("<>");
}
else if (Operation == "<=")
{
Result.Append(">");
}
else
{
Result.Append("<");
}
Result.Append(" ");
Result.Append(NullHypothesis.ToString());
Result.Append("\r\n");
BigDecimal sum = 0;
BigDecimal mean = 0;
BigDecimal Variance = 0;
BigDecimal Sd = 0;
//Sd为标准差
int count = 0;
BigDecimal sum2 = 0;
//sum2用于计算数字的平方，方便计算方差
Double TempNum = 0;
BigDecimal BigTemp = 0;
//BigTemp用于记录BigDecimal类型的临时数据
double Threshold = 0;
//Threshold为临界值
double PValue = 0;
//Pvalue不用多解释了吧～
foreach (string Num in Numbers)
{
if (Double.TryParse(Num, out TempNum))
{
sum += TempNum;
sum2 += (BigDecimal)TempNum * (BigDecimal)TempNum;
count++;
}
}
//遍历了该列所有数字
if (Statistics == "均值")
{
if (count >= 30)
{
Result.Append(HTHeader_Ztest);
}
else
{
Result.Append(HTHeader_Ttest);
}
if (count <= 1)
{
return("样本数量过少，无法进行假设检验！\r\n");
}
else
{
//开始计算均值和方差
//方差要乘以调整系数
mean = sum / count;
Variance = (sum2 / count - mean * mean) * count / (count - 1);
Result.Append(StrManipulation.PadLeftX(StrManipulation.VariableNamePolish(ColName), ' ', 12));
Result.Append("\t");
Result.Append(StrManipulation.PadLeftX(count.ToString(), ' ', 12));
Result.Append("\t");
Result.Append(StrManipulation.PadLeftX(MathV.NumberPolish(mean.ToString()), ' ', 12));
Result.Append("\t");
Result.Append(StrManipulation.PadLeftX(MathV.NumberPolish(MathV.Sqrt(Variance.ToString()).ToString()), ' ', 12));
Result.Append("\t");
if (count >= 30)
{
//大样本
//z检验
Sd = MathV.Sqrt(Variance.ToString()).ToString();
BigTemp = (mean - NullHypothesis) / (Sd / Math.Sqrt(count));
//BigTemp此时的值为z检验统计量
//样本数count无需大数开方，用普通方法开方即可
if (Tail == "双侧")
{
Threshold = NORMSINV(1 - Significance / 2);
PValue = 2 * (1 - NORMDIST(Math.Abs(Convert.ToDouble(BigTemp.ToString()))));
}
else if (Tail == "左单侧")
{
Threshold = NORMSINV(Significance);
PValue = 1 - NORMDIST(Math.Abs(Convert.ToDouble(BigTemp.ToString())));
}
else if (Tail == "右单侧")
{
Threshold = NORMSINV(1 - Significance);
PValue = 1 - NORMDIST(Math.Abs(Convert.ToDouble(BigTemp.ToString())));
}
Result.Append(StrManipulation.PadLeftX(MathV.NumberPolish(BigTemp.ToString()), ' ', 12));
Result.Append("\t");
Result.Append(StrManipulation.PadLeftX(MathV.NumberPolish(Threshold.ToString()), ' ', 12));
Result.Append("\t");
Result.Append(StrManipulation.PadLeftX(MathV.NumberPolish(PValue.ToString()), ' ', 12));
Result.Append("\r\n");
if (PValue < Significance)
{
Result.Append("在");
Result.Append(Significance.ToString());
Result.Append("的显著性水平上拒绝原假设");
}
else
{
Result.Append("在");
Result.Append(Significance.ToString());
Result.Append("的显著性水平上不拒绝原假设");
}
}
else
{
//小样本
//t检验
Sd = MathV.Sqrt(Variance.ToString()).ToString();
BigTemp = (mean - NullHypothesis) / (Sd / Math.Sqrt(count));
//BigTemp此时的值为z检验统计量
//样本数count无需大数开方，用普通方法开方即可
if (Tail == "双侧")
{
Threshold = TINV(Significance / 2 / 2, count - 1);
//每个放进TINV的值都要除以2，这个bug之后会进行修复
PValue = TDIST(Math.Abs(Convert.ToDouble(BigTemp.ToString()) / 2), count - 1, 2);
}
else if (Tail == "左单侧")
{
Threshold = TINV(Significance / 2, count - 1);
PValue = TDIST(Math.Abs(Convert.ToDouble(BigTemp.ToString()) / 2), count - 1, 1);
}
else if (Tail == "右单侧")
{
Threshold = TINV(Significance / 2, count - 1);
PValue = TDIST(Math.Abs(Convert.ToDouble(BigTemp.ToString()) / 2), count - 1, 1);
}
Result.Append(StrManipulation.PadLeftX(MathV.NumberPolish(BigTemp.ToString()), ' ', 12));
Result.Append("\t");
Result.Append(StrManipulation.PadLeftX(MathV.NumberPolish(Threshold.ToString()), ' ', 12));
Result.Append("\t");
Result.Append(StrManipulation.PadLeftX(MathV.NumberPolish(PValue.ToString()), ' ', 12));
Result.Append("\r\n");
if (PValue < Significance)
{
Result.Append("在");
Result.Append(Significance.ToString());
Result.Append("的显著性水平上拒绝原假设");
}
else
{
Result.Append("在");
Result.Append(Significance.ToString());
Result.Append("的显著性水平上不拒绝原假设");
}
}
Result.Append("\r\n");
return(Result.ToString());
}
}
else if (Statistics == "比率")
{
return("hhh");
}
else
{
//方差
return("hhh");
}
}
public static string QuickSummary(DataTable MainDT, int ColNum)
{
string ColName = MainDT.Columns[ColNum].ColumnName;
List <string> Numbers = Tabulation.ReadVector(MainDT, ColNum);
StringBuilder Result = new StringBuilder();
BigDecimal sum = 0;
BigDecimal mean = 0;
BigDecimal Variance = 0;
int count = 0;
BigDecimal max = 0;
BigDecimal min = 0;
BigDecimal sum2 = 0;
Double TempNum = 0;
//sum2用于计算数字的平方，方便计算方差
foreach (string Num in Numbers)
{
if (Double.TryParse(Num, out TempNum))
{
sum += TempNum;
sum2 += (BigDecimal)TempNum * (BigDecimal)TempNum;
count++;
if (count == 1)
{
max = TempNum;
min = TempNum;
}
else
{
if (max < TempNum)
{
max = TempNum;
}
if (min > TempNum)
{
min = TempNum;
}
}
}
}
if (count == 0)
{
//如果没有获取任何数字
return("");
}
else if (count == 1)
{
//如果只有一个数字，可以计算均值，但是不可以计算标准差
mean = sum / count;
Result.Append(StrManipulation.PadLeftX(StrManipulation.VariableNamePolish(ColName), ' ', 12));
Result.Append("\t");
Result.Append(StrManipulation.PadLeftX(count.ToString(), ' ', 12));
Result.Append("\t");
Result.Append(StrManipulation.PadLeftX(MathV.NumberPolish(mean.ToString()), ' ', 12));
Result.Append("\t");
Result.Append(StrManipulation.PadLeftX("NA", ' ', 12));
Result.Append("\t");
Result.Append(StrManipulation.PadLeftX(MathV.NumberPolish(min.ToString()), ' ', 12));
Result.Append("\t");
Result.Append(StrManipulation.PadLeftX(MathV.NumberPolish(max.ToString()), ' ', 12));
Result.Append("\r\n");
//Temp += Result;
return(Result.ToString());
}
else
{
//开始计算均值和方差
//方差要乘以调整系数
mean = sum / count;
Variance = (sum2 / count - mean * mean) * count / (count - 1);
Result.Append(StrManipulation.PadLeftX(StrManipulation.VariableNamePolish(ColName), ' ', 12));
Result.Append("\t");
Result.Append(StrManipulation.PadLeftX(count.ToString(), ' ', 12));
Result.Append("\t");
Result.Append(StrManipulation.PadLeftX(MathV.NumberPolish(mean.ToString()), ' ', 12));
Result.Append("\t");
Result.Append(StrManipulation.PadLeftX(MathV.NumberPolish(MathV.Sqrt(Variance.ToString()).ToString()), ' ', 12));
Result.Append("\t");
Result.Append(StrManipulation.PadLeftX(MathV.NumberPolish(min.ToString()), ' ', 12));
Result.Append("\t");
Result.Append(StrManipulation.PadLeftX(MathV.NumberPolish(max.ToString()), ' ', 12));
Result.Append("\r\n");
return(Result.ToString());
}
}
private void button1_Click(object sender, EventArgs e)
{
StringBuilder Result = new StringBuilder();
int ColNum = 0;
if (Int32.TryParse(texbox_dep.Text, out ColNum))
{
string[] NumberSeries = Tabulation.ReadVector(MainForm.MainDT, ColNum - 1).ToArray();
int length = 0;
int lag = 4; //自己给定lag的值
string[][] NumberCombine = new string[lag + 1][];
BigDecimal[] corr = new BigDecimal[lag];
BigDecimal sum_Qtest = 0;
BigDecimal sum_LBtest = 0;
foreach (string Num in NumberSeries)
{
if (Num != "" && Num != null)
{
length++;
}
}
if (length < 8)
{
MessageBox.Show("数据量过少,建议使用灰色预测");
}
else
{
for (int i = 0; i < lag + 1; i++)
{
NumberCombine[i] = new string[length - lag];
for (int j = 0; j < length - lag; j++)
{
NumberCombine[i][j] = NumberSeries[j + lag - i];
}
try
{
corr[i - 1] = Stat.Corr(NumberCombine[i], NumberCombine[i - 1]);
sum_Qtest += corr[i - 1] * corr[i - 1];
sum_LBtest += corr[i - 1] * corr[i - 1] / (BigDecimal)(length - i);
}
catch (Exception ex) { }
}
string[] output = Stat.TimeseriesTest(length, sum_Qtest, sum_LBtest, lag, corr);
Result.Append(StrManipulation.PadLeftX("时间序列平稳性检验", ' ', 12));
Result.Append("\r\n");
Result.Append(StrManipulation.PadRightX("Q检验:", ' ', 12));
Result.Append("\r\n");
Result.Append(StrManipulation.PadLeftX("Q =", ' ', 12));
Result.Append("\t");
Result.Append(StrManipulation.PadLeftX(MathV.NumberPolish(output[lag]), ' ', 12));
Result.Append("\r\n");
Result.Append(StrManipulation.PadLeftX("Prob > Q =", ' ', 12));
Result.Append("\t");
Result.Append(StrManipulation.PadLeftX(MathV.NumberPolish(output[lag + 1]), ' ', 12));
Result.Append("\r\n");
Result.Append(StrManipulation.PadRightX("LB检验:", ' ', 12));
Result.Append("\r\n");
Result.Append(StrManipulation.PadLeftX("LB =", ' ', 12));
Result.Append("\t");
Result.Append(StrManipulation.PadLeftX(MathV.NumberPolish(output[lag + 2]), ' ', 12));
Result.Append("\r\n");
Result.Append(StrManipulation.PadLeftX("Prob > LB =", ' ', 12));
Result.Append("\t");
Result.Append(StrManipulation.PadLeftX(MathV.NumberPolish(output[lag + 3]), ' ', 12));
Result.Append("\r\n");
if (Convert.ToDouble(output[lag + 1]) <= 0.05 || Convert.ToDouble(output[lag + 3]) <= 0.05)
{
Result.Append(StrManipulation.PadRightX("在95%的显著性水平下认为序列非白噪声，观测值间显著相关。", ' ', 50));
Result.Append("\r\n");
}
else
{
Result.Append(StrManipulation.PadRightX("在95%的显著性水平下认为序列为白噪声，观测值间相互独立。", ' ', 50));
Result.Append("\r\n");
}
Result.Append("\r\n");
int period = 0;
if (Int32.TryParse(textBox_period.Text, out period))
{
BigDecimal[] AR1 = Stat.AR1(NumberSeries, length, corr, period);
BigDecimal[] AR2 = Stat.AR2(NumberSeries, length, corr, period);
BigDecimal[] plot_forecast = new BigDecimal[period];
if (AR1[period] <= AR2[period])
{
Result.Append(StrManipulation.PadRightX("最佳预测模型：AR1", ' ', 12));
Result.Append("\r\n");
Result.Append(StrManipulation.PadLeftX("序号（预测）", ' ', 12));
Result.Append("\t");
for (int i = 0; i < period; i++)
{
Result.Append(StrManipulation.PadLeftX(i.ToString(), ' ', 12));
plot_forecast[i] = AR1[i];
Result.Append("\t");
}
Result.Append("\r\n");
Result.Append(StrManipulation.PadLeftX("预测值", ' ', 12));
Result.Append("\t");
for (int i = 0; i < period; i++)
{
Result.Append(StrManipulation.PadLeftX(MathV.NumberPolish(AR1[i].ToString()), ' ', 12));
Result.Append("\t");
}
}
else
{
Result.Append(StrManipulation.PadRightX("最佳预测模型：AR2", ' ', 12));
Result.Append("\r\n");
Result.Append(StrManipulation.PadLeftX("序号（预测）", ' ', 12));
Result.Append("\t");
for (int i = 0; i < period; i++)
{
Result.Append(StrManipulation.PadLeftX(i.ToString(), ' ', 12));
plot_forecast[i] = AR2[i];
Result.Append("\t");
}
Result.Append("\r\n");
Result.Append(StrManipulation.PadLeftX("预测值", ' ', 12));
Result.Append("\t");
for (int i = 0; i < period; i++)
{
Result.Append(StrManipulation.PadLeftX(MathV.NumberPolish(AR2[i].ToString()), ' ', 12));
Result.Append("\t");
}
}
Result.Append("\r\n");
Result.Append("\r\n");
MainForm.S.richTextBox1.AppendText(Result.ToString());
//MainForm.S.richTextBox1.Select();//让RichTextBox获得焦点
chart_timeseries.Series.Clear();
Series series = new Series("原数据");
Series series2 = new Series("预测数据");
//ChartArea area = chart_timeseries.ChartAreas.Add("chartArea");
//area.AxisX.MajorGrid.LineWidth = 0;
series.Color = Color.MidnightBlue;
series2.Color = Color.Maroon;
if (length <= 50)
{
series.BorderWidth = 2;
series2.BorderWidth = 2;
}
series.ChartType = SeriesChartType.Line;
series2.ChartType = SeriesChartType.Line;
for (int i = 0; i < length; i++)
{
series.Points.AddXY(i + 1, Convert.ToDouble(NumberSeries[i].ToString()));
}
series2.Points.AddXY(length, Convert.ToDouble(NumberSeries[length - 1].ToString()));
for (int i = 0; i < period; i++)
{
series2.Points.AddXY(i + 1 + length, Convert.ToDouble(plot_forecast[i].ToString()));
}
chart_timeseries.Series.Add(series);
chart_timeseries.Series.Add(series2);
}
else
{
MessageBox.Show("请输入预测期数");
}
}
}
else
{
MessageBox.Show("无此列");
}
}
private void button_chart_Click(object sender, EventArgs e)
{
StringBuilder Result = new StringBuilder();
int ColNum = 0;
if (Int32.TryParse(texbox_dep.Text, out ColNum))
{
string[] NumberSeries = Tabulation.ReadVector(MainForm.MainDT, ColNum - 1).ToArray();
int length = 0;
foreach (string Num in NumberSeries)
{
if (Num != "" && Num != null)
{
length++;
}
}
int period = 0;
if (Int32.TryParse(textBox_period.Text, out period))
{
BigDecimal[] cumsum = new BigDecimal[length];
for (int i = 0; i < length; i++)
{
cumsum[i] = 0;
for (int j = 0; j <= i; j++)
{
cumsum[i] += NumberSeries[j];
}
}
BigDecimal[] C = new BigDecimal[length - 1];
for (int i = 0; i < length - 1; i++)
{
C[i] = 0 - (cumsum[i] + cumsum[i + 1]) / 2;
}
BigDecimal[,] D = new BigDecimal[length - 1, 1];
for (int i = 0; i < length - 1; i++)
{
D[i, 0] = NumberSeries[i + 1];
}
BigDecimal[,] E = new BigDecimal[2, length - 1];
for (int i = 0; i < length - 1; i++)
{
E[1, i] = 1;
E[0, i] = C[i];
}
//BigNumber[,] c = MathV.MatTimes(MathV.MatTimes(MathV.MatInv(MathV.MatTimes(E, MathV.MatTrans(E)), 2), E), MathV.MatTrans(D));
BigDecimal[,] c = MathV.MatTimes(MathV.MatTimes(MathV.MatInv(MathV.MatTimes(E, MathV.MatTrans(E)), 2), E), D);
BigDecimal a = c[0, 0];
BigDecimal b = c[1, 0];
BigDecimal t = b / a;
BigDecimal[] F = new BigDecimal[length + period];
for (int i = 0; i < length + period; i++)
{
BigDecimal e1 = 2.718281828;
F[i] = (NumberSeries[0] - t) / Math.Exp((i) * Convert.ToDouble(a.ToString())) + t;
}
BigDecimal[] G = new BigDecimal[length + period];
G[0] = NumberSeries[0];
for (int i = 1; i < length + period; i++)
{
G[i] = F[i] - F[i - 1];
}
Result.Append(StrManipulation.PadRightX("灰色预测GM(1,1)模型", ' ', 12));
Result.Append("\r\n");
Result.Append(StrManipulation.PadLeftX("序号（所有）", ' ', 12));
Result.Append("\t");
for (int i = 0; i < period; i++)
{
Result.Append(StrManipulation.PadLeftX(i.ToString(), ' ', 12));
Result.Append("\t");
}
Result.Append("\r\n");
Result.Append(StrManipulation.PadLeftX("预测值", ' ', 12));
Result.Append("\t");
for (int i = 0; i < period + length; i++)
{
Result.Append(StrManipulation.PadLeftX(MathV.NumberPolish(G[i].ToString()), ' ', 12));
Result.Append("\t");
}
Result.Append("\r\n");
Result.Append("\r\n");
chart_timeseries.Series.Clear();
Series series3 = new Series("原数据(点)");
Series series4 = new Series("灰色预测数据");
series3.MarkerStyle = MarkerStyle.Circle;
series3.MarkerSize = 6;
series4.BorderWidth = 2;
series3.Color = Color.MidnightBlue;
series4.Color = Color.Maroon;
series3.ChartType = SeriesChartType.Point;
series4.ChartType = SeriesChartType.Line;
for (int i = 0; i < length; i++)
{
series3.Points.AddXY(i + 1, Convert.ToDouble(NumberSeries[i].ToString()));
}
for (int i = 0; i < period + length; i++)
{
series4.Points.AddXY(i + 1, Convert.ToDouble(G[i].ToString()));
}
chart_timeseries.Series.Add(series3);
chart_timeseries.Series.Add(series4);
}
else
{
MessageBox.Show("请输入预测期数");
}
}
else
{
MessageBox.Show("无此列");
}
}
public static void NAProcess(DataGridView dataGridView1, string Cols, string type, RichTextBox richTextBox1, ComboBox comboBox_user_defined, TextBox textBox_user_defined)
{
char [] separator = { ',' };
string [] AllCols = Cols.Split(separator);
List <int> ColsNeedRemove = new List <int>();
int NACount = 0;
//计算缺失值数量
DataTable dt = dataGridView1.DataSource as DataTable;
richTextBox1.AppendText("缺失值处理:\r\n");
richTextBox1.AppendText(" 处理方式: " + type + "\r\n");
richTextBox1.Select(); //让RichTextBox获得焦点
richTextBox1.Select(richTextBox1.TextLength, 0); //将插入符号置于文本结束处
richTextBox1.ScrollToCaret();
BigNumber Mean = 0;
BigNumber Sum = 0;
foreach (string Col in AllCols)
{
int StartCount = 0;
//从第一个非空值开始计数
NACount = 0;
Sum = 0;
if (comboBox_user_defined.Text == "平均值")
{
string [] Numbers = Tabulation.ReadVector(MainForm.MainDT, Convert.ToInt32(Col) - 1).ToArray();
int NumCounts = 0;
foreach (string Num in Numbers)
{
if (Tabulation.IsStrDouble(Num))
{
Sum += Convert.ToDouble(Num);
NumCounts++;
}
}
Mean = Sum / NumCounts;
}
for (int i = dataGridView1.Rows.Count - 2; i >= 0; i--)
{
//倒着数，从后往前数
if (StartCount == 0 && dataGridView1.Rows[i].Cells[Convert.ToInt32(Col) - 1].Value.ToString().Trim() != "")
{
StartCount = 1;
continue;
}
if (StartCount == 1 && dataGridView1.Rows[i].Cells[Convert.ToInt32(Col) - 1].Value.ToString().Trim() == "")
{
//遇到缺失值了
if (type == "计算缺失值个数")
{
NACount++;
}
else if (type == "删除整行")
{
NACount++;
//dt.Rows.RemoveAt(i);
ColsNeedRemove.Add(i);
}
else if (type == "替换为特定值")
{
if (comboBox_user_defined.Text == "平均值")
{
dataGridView1.Rows[i].Cells[Convert.ToInt32(Col) - 1].Value = Mean.ToString();
}
else if (comboBox_user_defined.Text == "自定义值")
{
dataGridView1.Rows[i].Cells[Convert.ToInt32(Col) - 1].Value = textBox_user_defined.Text;
}
NACount++;
}
}
}
if (StartCount != 0)
{
richTextBox1.AppendText(" " + "第" + Col + "列" + "缺失值个数: " + NACount.ToString() + "\r\n");
richTextBox1.Select(); //让RichTextBox获得焦点
richTextBox1.Select(richTextBox1.TextLength, 0); //将插入符号置于文本结束处
richTextBox1.ScrollToCaret();
}
}
richTextBox1.AppendText("\r\n");
if (type == "删除整行")
{
ColsNeedRemove = ColsNeedRemove.Distinct().ToList();
ColsNeedRemove.Sort();
int [] SequenceRemove = ColsNeedRemove.ToArray();
for (int i = SequenceRemove.Length - 1; i >= 0; i--)
{
dt.Rows.RemoveAt(SequenceRemove[i]);
}
dataGridView1.DataSource = dt;
}
}
private void button1_Click(object sender, EventArgs e)
{
int ProvinceNum = 0;
int VariableNum = 0;
if (Int32.TryParse(texbox_province.Text, out ProvinceNum))
{
if (Int32.TryParse(textBox_variable.Text, out VariableNum))
{
string[] Province_name = Tabulation.ReadVector(MainForm.MainDT, ProvinceNum - 1).ToArray();
string[] Variable_data = Tabulation.ReadVector(MainForm.MainDT, VariableNum - 1).ToArray();
double[] data1 = new double[31];
string[] match = new string[] { "黑", "内", "新", "吉", "辽", "甘", "河北", "京", "山西", "津", "陕", "夏", "青", "山东", "藏", "河南", "苏", "安", "川", "湖北", "重", "上", "浙", "湖南", "江西", "云", "贵", "福", "广西", "海南", "广东" };
for (int i = 0; i < 31; i++)
{
for (int j = 0; j < 31; j++)
{
if (Province_name[j].IndexOf(match[i]) > -1)
{
data1[i] = Convert.ToDouble(Variable_data[j]);
break;
}
}
}
string str2 = Environment.CurrentDirectory;
DataTable dt = new DataTable();
DataTable dt_fill = new DataTable();
string coor_path = str2 + "\\coordinates_tiny.csv";
string coor_fill = str2 + "\\coordinates_tinyfill.csv";
char[] separators = new char[1];
separators[0] = ',';
dt = Tabulation.LoadFromCSVFile(coor_path, separators);
dt_fill = Tabulation.LoadFromCSVFile(coor_fill, separators);
int[] X_fill = new int[dt_fill.Rows.Count];
int[] Y_fill = new int[dt_fill.Rows.Count];
int[] Num_count = new int[31]; //31个省的填充坐标点数
Num_count[0] = 5436;
Num_count[1] = 18313;
Num_count[2] = 35839;
Num_count[3] = 37966;
Num_count[4] = 39530;
Num_count[5] = 43696;
Num_count[6] = 45647;
Num_count[7] = 45814;
Num_count[8] = 47410;
Num_count[9] = 47531;
Num_count[10] = 49571;
Num_count[11] = 50103;
Num_count[12] = 57224;
Num_count[13] = 58756;
Num_count[14] = 70210;
Num_count[15] = 71816;
Num_count[16] = 72785;
Num_count[17] = 74121;
Num_count[18] = 78660;
Num_count[19] = 80410;
Num_count[20] = 81181;
Num_count[21] = 81229;
Num_count[22] = 82155;
Num_count[23] = 84079;
Num_count[24] = 85602;
Num_count[25] = 89021;
Num_count[26] = 90616;
Num_count[27] = 91701;
Num_count[28] = 93791;
Num_count[29] = 94079;
Num_count[30] = 95620;
for (int i = 0; i < dt_fill.Rows.Count; i++)
{
//读取每个省的填充坐标数据
for (int j = 0; j < 31; j++)
{
if (j == 0)
{
if (i < Num_count[j])
{
X_fill[i] = Convert.ToInt32(dt_fill.Rows[i][0]); // 经度
Y_fill[i] = Convert.ToInt32(dt_fill.Rows[i][1]); //纬度
}
}
else
{
if (i < Num_count[j] && i >= Num_count[j - 1])
{
X_fill[i] = Convert.ToInt32(dt_fill.Rows[i][0]); // 经度
Y_fill[i] = Convert.ToInt32(dt_fill.Rows[i][1]); //纬度
//ID_coordinates[i] = Convert.ToDouble(dt.Rows[i][0]);
}
}
}
}
//double[] data1 = new double[] {0.589967025780379,2.76640767785393,2.94486656044847,5.18774795087285,9.55568524078571,7.21217446706751,4.81608668665851,5.67326916712699,9.54321203609774,6.27015178543689,0.354135803190215,8.14711495872654,2.47480472823066,3.05263290782758,2.21504588700546,6.70140475318904,6.05666406518314,2.40509705776911,2.60405493113485,1.6725398082315,5.49355137602265,2.82091154095248,9.6588283411846,5.38501889047855,2.50490878854465,0.604765223162727,1.58887244642718,1.17203933984219,2.20719788025169,2.15731627156846,9.43471799430495}; //按照黑龙江 。。。。 的顺序排好的数
double[] data = new double[31];
data1.CopyTo(data, 0);
double[] datarank = MathV.Sort(31, data1);//从小到大排序
this.chart1.Series.Clear();
int count_class = 4;
double[] quan_value = new double[count_class + 1];
quan_value[0] = datarank[0];
quan_value[1] = datarank[7];
quan_value[2] = datarank[15];
quan_value[3] = datarank[23];
quan_value[4] = datarank[30];
for (int i = 0; i < count_class; i++)
{
Series series = new Series();
series.ChartType = SeriesChartType.FastPoint;
this.chart1.Series.Add(series);
}
for (int i = 0; i < 4; i++)
{
Series series = new Series();
series.Name = "(" + MathV.round(quan_value[i].ToString(), 2, 0) + "," + MathV.round(quan_value[i + 1].ToString(), 2, 0) + ")";
series.ChartType = SeriesChartType.Column;
this.chart1.Series.Add(series);
}
//台湾不能忘
Series series_taiwan = new Series();
series_taiwan.ChartType = SeriesChartType.FastPoint; //边界
this.chart1.Series.Add(series_taiwan);
series_taiwan.MarkerStyle = MarkerStyle.Circle;
series_taiwan.MarkerSize = 2;
series_taiwan.IsVisibleInLegend = false;
series_taiwan.Color = Color.FromArgb(6, 52, 156);
if (comboBox_theme.Text == "蓝色")
{
this.chart1.Series[0].Color = Color.FromArgb(151, 182, 251);
this.chart1.Series[1].Color = Color.FromArgb(78, 131, 248);
this.chart1.Series[2].Color = Color.FromArgb(9, 71, 219);
this.chart1.Series[3].Color = Color.FromArgb(6, 52, 156);
this.chart1.Series[4].Color = Color.FromArgb(151, 182, 251);
this.chart1.Series[5].Color = Color.FromArgb(78, 131, 248);
this.chart1.Series[6].Color = Color.FromArgb(9, 71, 219);
this.chart1.Series[7].Color = Color.FromArgb(6, 52, 156);
series_taiwan.Color = Color.FromArgb(6, 52, 156);
}
else if (comboBox_theme.Text == "青色")
{
this.chart1.Series[0].Color = Color.FromArgb(128, 234, 248);
this.chart1.Series[1].Color = Color.FromArgb(34, 217, 242);
this.chart1.Series[2].Color = Color.FromArgb(12, 190, 214);
this.chart1.Series[3].Color = Color.FromArgb(8, 119, 134);
this.chart1.Series[4].Color = Color.FromArgb(128, 234, 248);
this.chart1.Series[5].Color = Color.FromArgb(34, 217, 242);
this.chart1.Series[6].Color = Color.FromArgb(12, 190, 214);
this.chart1.Series[7].Color = Color.FromArgb(8, 119, 134);
series_taiwan.Color = Color.FromArgb(8, 119, 134);
}
else if (comboBox_theme.Text == "绿色")
{
this.chart1.Series[0].Color = Color.FromArgb(122, 250, 146);
this.chart1.Series[1].Color = Color.FromArgb(55, 247, 92);
this.chart1.Series[2].Color = Color.FromArgb(9, 221, 49);
this.chart1.Series[3].Color = Color.FromArgb(6, 144, 32);
this.chart1.Series[4].Color = Color.FromArgb(122, 250, 146);
this.chart1.Series[5].Color = Color.FromArgb(55, 247, 92);
this.chart1.Series[6].Color = Color.FromArgb(9, 221, 49);
this.chart1.Series[7].Color = Color.FromArgb(6, 144, 32);
series_taiwan.Color = Color.FromArgb(6, 144, 32);
}
else if (comboBox_theme.Text == "红色")
{
this.chart1.Series[0].Color = Color.FromArgb(253, 149, 141);
this.chart1.Series[1].Color = Color.FromArgb(251, 73, 59);
this.chart1.Series[2].Color = Color.FromArgb(242, 21, 4);
this.chart1.Series[3].Color = Color.FromArgb(196, 0, 0);
this.chart1.Series[4].Color = Color.FromArgb(253, 149, 141);
this.chart1.Series[5].Color = Color.FromArgb(251, 73, 59);
this.chart1.Series[6].Color = Color.FromArgb(242, 21, 4);
this.chart1.Series[7].Color = Color.FromArgb(196, 0, 0);
series_taiwan.Color = Color.FromArgb(196, 0, 0);
}
for (int i = 0; i < 4; i++)
{
this.chart1.Series[i].MarkerStyle = MarkerStyle.Circle;
this.chart1.Series[i].MarkerSize = 2;
this.chart1.Series[i].IsVisibleInLegend = false;
}
Series series5 = new Series();
series5.ChartType = SeriesChartType.FastPoint; //边界
this.chart1.Series.Add(series5);
series5.MarkerStyle = MarkerStyle.Square;
series5.MarkerSize = 2;
series5.IsVisibleInLegend = false;
if (comboBox_boundary.Text == "无边界")
{
}
else if (comboBox_boundary.Text == "白色")
{
series5.Color = Color.White;
for (int i = 0; i < dt.Rows.Count - 168; i++)
{
series5.Points.AddXY(Convert.ToInt32(dt.Rows[i][1]), Convert.ToInt32(dt.Rows[i][2]));
}
}
else
{
series5.Color = Color.Black;
for (int i = 0; i < dt.Rows.Count - 168; i++)
{
series5.Points.AddXY(Convert.ToInt32(dt.Rows[i][1]), Convert.ToInt32(dt.Rows[i][2]));
}
}
for (int i = 12504; i < 12672; i++)
{
series_taiwan.Points.AddXY(Convert.ToInt32(dt.Rows[i][1]), Convert.ToInt32(dt.Rows[i][2]));
}
for (int i = 0; i < 31; i++)
{
if (data[i] <= quan_value[1])
{
if (i == 0)
{
for (int j = 0; j < Num_count[i]; j++)
{
//MessageBox.Show(X_fill[j].ToString());
this.chart1.Series[0].Points.AddXY(X_fill[j], Y_fill[j]); //添加对应数据点
}
}
else
{
for (int j = Num_count[i - 1]; j < Num_count[i]; j++)
{
this.chart1.Series[0].Points.AddXY(X_fill[j], Y_fill[j]); //添加对应数据点
}
}
}
if (data[i] > quan_value[1] && data[i] <= quan_value[2])
{
if (i == 0)
{
for (int j = 0; j < Num_count[i]; j++)
{
this.chart1.Series[1].Points.AddXY(X_fill[j], Y_fill[j]); //添加对应数据点
}
}
else
{
for (int j = Num_count[i - 1]; j < Num_count[i]; j++)
{
this.chart1.Series[1].Points.AddXY(X_fill[j], Y_fill[j]); //添加对应数据点
}
}
}
if (data[i] > quan_value[2] && data[i] <= quan_value[3])
{
if (i == 0)
{
for (int j = 0; j < Num_count[i]; j++)
{
this.chart1.Series[2].Points.AddXY(X_fill[j], Y_fill[j]); //添加对应数据点
}
}
else
{
for (int j = Num_count[i - 1]; j < Num_count[i]; j++)
{
this.chart1.Series[2].Points.AddXY(X_fill[j], Y_fill[j]); //添加对应数据点
}
}
}
if (data[i] > quan_value[3])
{
if (i == 0)
{
for (int j = 0; j < Num_count[i]; j++)
{
this.chart1.Series[3].Points.AddXY(X_fill[j], Y_fill[j]); //添加对应数据点
}
}
else
{
for (int j = Num_count[i - 1]; j < Num_count[i]; j++)
{
this.chart1.Series[3].Points.AddXY(X_fill[j], Y_fill[j]); //添加对应数据点
}
}
}
}
}
}
}
