private void getPredictionChart(int index)
{
PredictionChart.BeginInvoke((MethodInvoker) delegate
{
PositionInfo posInfo = positionInfos[index];
List <int> yList = posInfo.getCounts();
List <string> xList = posInfo.getMonths();
xList.Sort();
PredictionChart.Series[0].Points.DataBindXY(xList, yList);
double k = 0, b = 0;
new LinearRegressonProcessor(xList, yList).Calculate(out k, out b);
int baseMonth = new Month(xList[0]).convertToNumber();
int month1 = new Month("2018-01").convertToNumber() - baseMonth,
month2 = new Month("2018-02").convertToNumber() - baseMonth,
month3 = new Month("2018-03").convertToNumber() - baseMonth;
int prediction1 = (int)(k * month1 + b),
prediction2 = (int)(k * month2 + b),
prediction3 = (int)(k * month3 + b);
predictionYearLabel1.Text = "Prediction for 2018-1: " + prediction1;
predictionYearLabel2.Text = "Prediction for 2018-2: " + prediction2;
predictionYearLabel3.Text = "Prediction for 2018-3: " + prediction3;
LRText.Text = String.Format("Linear Regression Formula: y = {0:F}x + {1:F}", k, b);
});
}
private void initPredictonChart()
{
if (!inited)
{
inited = true;
List <string> tempX = new List <string>(new String[] { "1", "2", "3" });
List <int> tempY = new List <int>(new int[] { 1, 2, 3 });
getPredictionChart(0);
//标题
PredictionChart.BeginInvoke((MethodInvoker) delegate
{
PredictionChart.Series[0].Points.DataBindXY(tempX, tempY);
PredictionChart.Titles.Add("统计分析表");
PredictionChart.Titles[0].ForeColor = Color.Black;
PredictionChart.Titles[0].Font = new Font("Calibri", 16f, FontStyle.Regular);
PredictionChart.Titles[0].Alignment = ContentAlignment.TopCenter;
//控件背景
PredictionChart.BackColor = Color.Transparent;
//图表区背景
PredictionChart.ChartAreas[0].BackColor = Color.Transparent;
PredictionChart.ChartAreas[0].BorderColor = Color.Transparent;
//X轴标签间距
PredictionChart.ChartAreas[0].AxisX.Interval = 1;
PredictionChart.ChartAreas[0].AxisX.LabelStyle.IsStaggered = true;
PredictionChart.ChartAreas[0].AxisX.LabelStyle.Angle = -45;
PredictionChart.ChartAreas[0].AxisX.TitleFont = new Font("Calibri", 14f, FontStyle.Regular);
PredictionChart.ChartAreas[0].AxisX.TitleForeColor = Color.Black;
//X坐标轴颜色
PredictionChart.ChartAreas[0].AxisX.LineColor = ColorTranslator.FromHtml("#38587a");;
PredictionChart.ChartAreas[0].AxisX.LabelStyle.ForeColor = Color.Black;
PredictionChart.ChartAreas[0].AxisX.LabelStyle.Font = new Font("Calibri", 10f, FontStyle.Regular);
//X轴网络线条
PredictionChart.ChartAreas[0].AxisX.MajorGrid.Enabled = true;
PredictionChart.ChartAreas[0].AxisX.MajorGrid.LineColor = ColorTranslator.FromHtml("#2c4c6d");
//Y坐标轴颜色
PredictionChart.ChartAreas[0].AxisY.LineColor = ColorTranslator.FromHtml("#38587a");
PredictionChart.ChartAreas[0].AxisY.LabelStyle.ForeColor = Color.Black;
PredictionChart.ChartAreas[0].AxisY.LabelStyle.Font = new Font("Calibri", 10f, FontStyle.Regular);
//Y坐标轴标题
PredictionChart.ChartAreas[0].AxisY.Title = "职位数目";
PredictionChart.ChartAreas[0].AxisY.TitleFont = new Font("Calibri", 10f, FontStyle.Regular);
PredictionChart.ChartAreas[0].AxisY.TitleForeColor = Color.Black;
PredictionChart.ChartAreas[0].AxisY.TextOrientation = TextOrientation.Rotated270;
//Y轴网格线条
PredictionChart.ChartAreas[0].AxisY.MajorGrid.Enabled = true;
PredictionChart.ChartAreas[0].AxisY.MajorGrid.LineColor = ColorTranslator.FromHtml("#2c4c6d");
PredictionChart.ChartAreas[0].AxisY2.LineColor = Color.Transparent;
PredictionChart.ChartAreas[0].BackGradientStyle = GradientStyle.TopBottom;
Legend legend = new Legend("legend");
legend.Title = "legendTitle";
PredictionChart.Series[0].XValueType = ChartValueType.String; //设置X轴上的值类型
PredictionChart.Series[0].Label = "#VAL"; //设置显示X Y的值
PredictionChart.Series[0].LabelForeColor = Color.Black;
PredictionChart.Series[0].ToolTip = "#VALX:#VAL"; //鼠标移动到对应点显示数值
PredictionChart.Series[0].ChartType = SeriesChartType.Column; //图类型
PredictionChart.Series[0].Color = Color.Lime;
PredictionChart.Series[0].LegendText = legend.Name;
PredictionChart.Series[0].IsValueShownAsLabel = true;
PredictionChart.Series[0].LabelForeColor = Color.Black;
PredictionChart.Series[0].CustomProperties = "DrawingStyle = Cylinder";
PredictionChart.Legends.Add(legend);
PredictionChart.Legends[0].Position.Auto = false;
//PredictionChart.Series[0].Points[0].Color = Color.Black;
PredictionChart.Series[0].Palette = ChartColorPalette.SeaGreen;
PredictionChart.Visible = true;
});
}
}