//
private void button3_Click_1(object sender, EventArgs e)
{
int item_n = listBox2.Items.Count;
int[] i = new int[item_n];
int _i = 0;
int _c = 0;
int k = 0;
int m = ds.Tables[0].Rows.Count; //行数
//获取自变量列索引，储存在i[]数组中
for (_i = 0; _i < item_n; _i++)
{
for (k = 0; k < n; k++)
{
if (listBox2.Items[_i].ToString() == ds.Tables[0].Columns[k].ColumnName)
{
i[_i] = k;
}
}
}
double[] x = new double[m];
double[] y = new double[m];
Mul_m mul = new Mul_m(m, item_n);
int j = 0;
//因为不能传递指针，只能for循环传递数据
foreach (DataRow dr in ds.Tables[0].Rows)
{
//遍历列
for (_i = 0; _i < item_n; _i++)
{
mul.InputData_x(j, _i, ToDouble(dr[i[_i]].ToString()));
}
j++;
}
//因变量列索引
for (_i = 0; _i < n; _i++)
{
if (textBox2.Text == ds.Tables[0].Columns[_i].ColumnName)
{
break;
}
}
j = 0;
foreach (DataRow dr in ds.Tables[0].Rows)
{
//遍历列
mul.InputData_y(j, ToDouble(dr[_i].ToString()));
j++;
}
mul.Mul_Cal2(); //计算
Mul_display mus = new Mul_display(mul, item_n);
mus.Show();
}
public Mul_display(Mul_m mul, int _width)
{
InitializeComponent();
width = _width;
bs = new double[width + 1];
for (int i = 0; i <= width; i++)
{
bs[i] = mul.get_M_rs(i);
}
mul.Calferroe();
mul_m = mul;
}
