Code problems

[Burga1]

Thank you Ray, that helped. Now I have only 1 error reported on this line. The error message reads "cannot apply indexing with [] to an expression of type double"...the little red error indicator is under the part where it reads "VarSto[1]"...any ideas?

Thanks again.

[Burga1]

The error caused by the "scalar" has been cleared, however how do I insert the code to compile correctly so as to use the previous period value?

Could I define a value equal to VarSto[1] and simply insert that variable where needed in the script? Thanks again.

[NinjaTrader_JoshP]

If you want to store the previous value of a variable you can just do something like

prevVarSto = VarSto;

Do this before you change the value of VarSto.

[KBJ]

Or, if you wanted to store more than one bar back, so you can reference several bars back, you could create another dataseries...

#region Variables
    private double VarSto = 0;
    private DataSeries myDataSeries2;
    private DataSeries VarStoSeries;
#endregion

protected override void Initialize()
{
  ...
  myDataSeries2 = new DataSeries(this);
  VarStoSeries  = new DataSeries(this);
  ...
}

protected override void OnBarUpdate()
{
  if (CurrentBar < 3) return;           // Make sure there are enough bars.

  if(CurrentBar < (Pr + (Pr * 1.5))){VarSto = StK;}
  else
  {
    myDataSeries2.Set(((1 - MyConst) * (VarStoSeries[3])) + (MyConst * Close));
    VarSto = SMA(myDataSeries2, 2)[0];
  }
  VarStoSeries.Set( VarSto );
}

Get the idea?

[Burga1]

Yes, thank you I believe I understand it. So that would be the typical method employed to store previous data values in NT then?

[NinjaTrader_JoshP]

Correct. You can either use DataSeries objects to store an array of values or if you only need the previous you can just pass the value on to a second variable.

[kennyguo]

thank you

oh Yes, thank you I believe I understand it. So that would be the typical method employed to store previous data values in NT then?

[KBJ]

As Josh has pointed out, you can use either technique, depending on how far back you want to access.

Keep in mind that using a DataSeies will use much, much more memory than just allocating a double, but the DataSeries will give you more possible functionality for the extra memory cost.

Don't use a screwdriver if what you really need is a chisel.