Value.Set() without plotting?

[Jellybean]

Hi

Is it possible to use a DataSeries property and Value.Set() in an indicator without drawing a plot line?

My indicator colours bars (blue or red) according to a condition and a plot line is not required. However, I would like the condition result to be accessible to calling indicators and strategies.

After the indicator was created without any plots, I added a DataSeries property, but no Add(), and I use Value.Set(1) or Value.Set(-1) for each condition. The condition values are now accessible to a calling indicator.

However, when this inidicator is applied to a chart, a plot line appears, with values -1 & +1. There are no inputs available for the plot line, so I can't suppress it manually. Can I suppress the plot line programmatically?

Cheers
Tony

[sledge]

You've removed and reapplied the indicator to the chart?

I've got an indicator with a lot of data series and only 2 of 8 are plotted... I would suspect everything would still work if I removed the 2 Adds()...

Restarted NT???

Hi

Is it possible to use a DataSeries property and Value.Set() in an indicator without drawing a plot line?

My indicator colours bars (blue or red) according to a condition and a plot line is not required. However, I would like the condition result to be accessible to calling indicators and strategies.

After the indicator was created without any plots, I added a DataSeries property, but no Add(), and I use Value.Set(1) or Value.Set(-1) for each condition. The condition values are now accessible to a calling indicator.

However, when this inidicator is applied to a chart, a plot line appears, with values -1 & +1. There are no inputs available for the plot line, so I can't suppress it manually. Can I suppress the plot line programmatically?

Cheers
Tony

[koganam]

Hi

Is it possible to use a DataSeries property and Value.Set() in an indicator without drawing a plot line?

My indicator colours bars (blue or red) according to a condition and a plot line is not required. However, I would like the condition result to be accessible to calling indicators and strategies.

After the indicator was created without any plots, I added a DataSeries property, but no Add(), and I use Value.Set(1) or Value.Set(-1) for each condition. The condition values are now accessible to a calling indicator.

However, when this inidicator is applied to a chart, a plot line appears, with values -1 & +1. There are no inputs available for the plot line, so I can't suppress it manually. Can I suppress the plot line programmatically?

Cheers
Tony

Values is just another identifier for the Plots Array. What is called a reserved word. If you assign to Values, the Plot is simply assumed, and used silently. In fact, many of the shipping NT indicators do not declare a Plot, and just assign to Values[0], or even Value.

Just expose the DataSeries itself directly as public, assign to it, and you can access if from wherever you wish.

Heck, I even sometimes use it as a mechanism to return data from the Strategy to the Indicator!

[Jellybean]

Thanks for your comment, Sledge.
I did try removing and re-applying the indicator and also restarting NT, but it stayed the same.
Cheers
Tony

[Jellybean]

Thanks, Koganam

I appreciate your help with this. It worked well with the right access available to other strategies & indicators.

However, when I try to save the Workspace, I get this error:
"Indicator 'NinjaTrader.Indicator.BBVColours' could not be serialized." I've obviously missed something. Can you help further?

I've just declared
public DataSeries Direction;

In Initialize()
Direction = new DataSeries( this );

In OnBarUpdate()
if( ... )
Direction[0] = -1;
else
Direction[0] = 1;


I access it from another indicator this way.
bool result = BBVColours( Close, signalATRMult, aTRPer ).Direction[1] < 0 && BBVColours( Close, signalATRMult, aTRPer ).Direction[0] > 0;

Cheers
Tony

[koganam]

Thanks, Koganam

I appreciate your help with this. It worked well with the right access available to other strategies & indicators.

However, when I try to save the Workspace, I get this error:
"Indicator 'NinjaTrader.Indicator.BBVColours' could not be serialized." I've obviously missed something. Can you help further?

I've just declared
public DataSeries Direction;

In Initialize()
Direction = new DataSeries( this );

In OnBarUpdate()
if( ... )
Direction[0] = -1;
else
Direction[0] = 1;


I access it from another indicator this way.
bool result = BBVColours( Close, signalATRMult, aTRPer ).Direction[1] < 0 && BBVColours( Close, signalATRMult, aTRPer ).Direction[0] > 0;

Cheers
Tony

Where and how did you expose the DataSeries Direction's properties?

[Jellybean]

Hi Koganam

Thanks for your guiding question!

I had just declared public DataSeries Direction, then accessed it as a member of the indicator.
BBVColours( Close, signalATRMult, aTRPer ).Direction[1], for example.

However, I have fixed the problem by providing a property for access to it. I now use:
private DataSeries direction;

and provide access with:
public DataSeries Direction
{
get { return direction; }
}

Thanks again for your help.

Cheers
Tony

[koganam]

Hi Koganam

Thanks for your guiding question!

I had just declared public DataSeries Direction, then accessed it as a member of the indicator.
BBVColours( Close, signalATRMult, aTRPer ).Direction[1], for example.

However, I have fixed the problem by providing a property for access to it. I now use:
private DataSeries direction;

and provide access with:
public DataSeries Direction
{
get { return direction; }
}

Thanks again for your help.

Cheers
Tony

Well, that was exactly what I was suspecting. I am glad that you fixed it on your own.