Ninjatrader 指标脚本编辑器中出现错误

Question

我试图创建一个基于 Donchian 通道的指标忍者交易者，但它显示了超过 30 个“值不在上下文中”的错误。那么在 VS studion 中编码比在 ninjatrader 脚本编辑器中编码更好吗？

这是代码-

#region Using declarations
using System;
using System.ComponentModel;
using System.ComponentModel.DataAnnotations;
using NinjaTrader.Data;
using NinjaTrader.NinjaScript;
using NinjaTrader.Gui.Tools;
#endregion

// Namespace for the custom indicator
namespace MyCustomIndicator
{
/// <summary>
/// Donchian Channels with Offset. This version uses the highest high and the lowest low over a period    of time, with an optional offset.
/// </summary>
public class DonchianChannelsWithOffset : Indicator
{
    private MAX max;  // To calculate the highest high
    private MIN min;  // To calculate the lowest low

    [Range(-100, 100), NinjaScriptProperty]
    [Display(Name="Offset", Order=1, GroupName="Parameters")]
    public int Offset { get; set; } // Offset for shifting the channels

    protected override void OnStateChange()
    {
        // State.SetDefaults handles the initialization of the indicator's default settings.
        if (State == State.SetDefaults)
        {
            Description                 = "Donchian Channels with Offset";
            Name                        = "Donchian Channels with Offset";
            IsOverlay                   = true;
            IsSuspendedWhileInactive    = true;
            Period                      = 20; // Default lookback period of 20

            AddPlot(Brushes.Goldenrod, "Mean"); // Midline plot
            AddPlot(Brushes.DodgerBlue, "Upper"); // Upper plot
            AddPlot(Brushes.DodgerBlue, "Lower"); // Lower plot
        }
        else if (State == State.DataLoaded)
        {
            // Once data is loaded, initialize the MAX and MIN indicators
            max = MAX(High, Period);
            min = MIN(Low, Period);
        }
    }

    protected override void OnBarUpdate()
    {
        // Ensure enough bars have loaded
        if (CurrentBar < Period)
            return;

        // Calculate the upper, lower, and midline
        double upperVal = max[0];
        double lowerVal = min[0];
        double midlineVal = (upperVal + lowerVal) / 2;

        // Apply the offset, shifting the values by 'Offset' bars
        if (Offset != 0)
        {
            int shiftedBar = Math.Max(0, CurrentBar - Offset);
            Values[1][0] = max[shiftedBar];  // Upper channel
            Values[2][0] = min[shiftedBar];  // Lower channel
            Values[0][0] = (Values[1][0] + Values[2][0]) / 2; // Mean (midline)
        }
        else
        {
            Values[1][0] = upperVal;  // Upper channel
            Values[2][0] = lowerVal;  // Lower channel
            Values[0][0] = midlineVal;  // Mean (midline)
        }
    }

    #region Properties

    [Browsable(false)]
    [XmlIgnore()]
    public Series<double> Upper
    {
        get { return Values[1]; }
    }

    [Browsable(false)]
    [XmlIgnore()]
    public Series<double> Lower
    {
        get { return Values[2]; }
    }

    [Browsable(false)]
    [XmlIgnore()]
    public Series<double> Mean
    {
        get { return Values[0]; }
    }

    [Range(1, int.MaxValue), NinjaScriptProperty]
    [Display(Name="Period", Order=2, GroupName="Parameters")]
    public int Period { get; set; }

    #endregion
     }
 }

 #region NinjaScript generated code. Neither change nor remove.

 namespace MyCustomIndicator
{
public partial class Indicator : NinjaTrader.Gui.NinjaScript.IndicatorRenderBase
{
    private DonchianChannelsWithOffset[] cacheDonchianChannelsWithOffset;
    public DonchianChannelsWithOffset DonchianChannelsWithOffset(int period, int offset)
    {
        return DonchianChannelsWithOffset(Input, period, offset);
    }

    public DonchianChannelsWithOffset DonchianChannelsWithOffset(ISeries<double> input, int period, int offset)
    {
        if (cacheDonchianChannelsWithOffset != null)
            for (int idx = 0; idx < cacheDonchianChannelsWithOffset.Length; idx++)
                if (cacheDonchianChannelsWithOffset[idx] != null &&  
 cacheDonchianChannelsWithOffset[idx].Period == period && cacheDonchianChannelsWithOffset[idx].Offset 
== offset && cacheDonchianChannelsWithOffset[idx].EqualsInput(input))
                    return cacheDonchianChannelsWithOffset[idx];
        return CacheIndicator<DonchianChannelsWithOffset>(new DonchianChannelsWithOffset() { Period =  
 period, Offset = offset }, input, ref cacheDonchianChannelsWithOffset);
    }
}
}

#endregion

那么为什么它显示代码和命名空间无效。

我想要有人可以修复此代码的错误，以便我可以运行此代码并查看它是如何工作的。

Answer 1

我几乎总是使用内置的 Ninjascript 编辑器，除非主动调试问题。 下面的代码将编译为指标。 标记的行是我更改/添加的唯一行。 顺便说一句...原始问题中的代码与 DonchainChannel 指标中内置的 Ninjatrader 非常相似。