public virtual void AddStyle(PlotStyle style)
{
if (style == null)
{
throw new ArgumentNullException("style");
}
if (PlotStyles.Contains(style))
{
throw new ArgumentException(string.Format("Style '{0}' already exists.", style.Name));
}
var styleNode = this["plot_style"];
if (styleNode == null)
{
throw new NotImplementedException("Create style node if it doesn't exist!");
}
style.NodeName = _nextStyleNode.ToString();
styleNode.ChildNodes.Add(style);
}
/* Usage: run in Execute:
* public override void Execute(BarHistory bars, int idx)
* {
* Color col = new Color();
* if (idx >= bars.Count-100)
* {
* if ( bars.Close[idx] > bars.Close[idx - 50])
* col = Color.Green;
* else col = Color.Red;
*
* DrawLinRegChannel(idx, bars.AveragePriceHL, 45, 2, Color.FromArgb(30, col), PlotStyles.Line, 2);
* }
* }
*/
public static void DrawLinRegChannel(this UserStrategyBase obj, int bar, TimeSeries series, int period, double width, Color color, PlotStyles style, int line)
{
double Slope = (period - 1) * LRSlope.Series(series, period)[bar];
double Intercept = LR.Series(series, period)[bar];
width *= StdError.Series(series, period)[bar];
obj.DrawLine(bar - (period - 1), Intercept - Slope - width, bar, Intercept - width, color, 1);
obj.DrawLine(bar - (period - 1), Intercept - Slope + width, bar, Intercept + width, color, 1);
}
