One indicator as an input for another indicator.

[outsource]

Hi Guys,

i want to try a combination of indicators,when i want to use one indicator as an input for another indicator.Now,how do i get next this combination into a strategy?

Thank you!

[NinjaTrader_PaulH]

Hello outsource,

Thanks for your post.

You would code the in the strategy in the same way as you would for a single indicator.

For example if you need a 20 period SMA of the input dataseries in the strategy you would write something like:

if (SMA(20)[0] > something) // This is the SMA 20 of price

If you wanted the 20 period SMA of volume, you would use the VOL as the input series, like this:

if (SMA(VOL(), 20)[0] > something) // this is the SMA 20 of Volume

Another example, getting the 20 period SMA of a 14 period ATR (no idea why but just to show example)

if (SMA (ATR(14), 20)[0] > something) // this is the SMA 20 of ATR(14)

You can code this directly in NinjaScript and/or the strategy wizard.

Please let me know if I can be of further assistance.

[outsource]

Hello outsource,

Thanks for your post.

You would code the in the strategy in the same way as you would for a single indicator.

For example if you need a 20 period SMA of the input dataseries in the strategy you would write something like:

if (SMA(20)[0] > something) // This is the SMA 20 of price

If you wanted the 20 period SMA of volume, you would use the VOL as the input series, like this:

if (SMA(VOL(), 20)[0] > something) // this is the SMA 20 of Volume

Another example, getting the 20 period SMA of a 14 period ATR (no idea why but just to show example)

if (SMA (ATR(14), 20)[0] > something) // this is the SMA 20 of ATR(14)

You can code this directly in NinjaScript and/or the strategy wizard.

Please let me know if I can be of further assistance.

Hi Paul,

What about if one of the indie exposed as Boolseries and another uses Values DataSeries.

Example:

Indicator A exposed as (this.Values[1][0]);
Indicator B exposed as (this.supadupa.BuyLow[0] == true)

Indicator A - is an input for B

How`d i connect them in a strategy?

[NinjaTrader_PaulH]

Hello outsource,

Thanks for your reply.

Using your example:

IndicatorB(IndicatorA).BuyLow[0]

In the strategy you could write:

if (IndicatorB(IndicatorA).BuyLow[0] == true)
{
// do something
}

[outsource]

Hello outsource,

Thanks for your reply.

Using your example:

IndicatorB(IndicatorA).BuyLow[0]

In the strategy you could write:

if (IndicatorB(IndicatorA).BuyLow[0] == true)
{
// do something
}

I try this,it doesn`t work.

[NinjaTrader_PaulH]

Hello outsource,

Thanks for your reply.

To investigate then:

Does it compile without error? If so when you implement the strategy is any error generated in the "Log" tab of the control center?

If no evidence of external errors then does that mean that the logic does not work? If it is a logic error have you tested the conditions?

[outsource]

Hello outsource,

Thanks for your reply.

To investigate then:

Does it compile without error? If so when you implement the strategy is any error generated in the "Log" tab of the control center?

If no evidence of external errors then does that mean that the logic does not work? If it is a logic error have you tested the conditions?

No,it doesn`t compile without errors,

the error is:

"Non-invocable member Ninjatrader.Indicator.''B'' cannot be used as method''.

[outsource]

The rest - the logic and conditions are fine.I can compile(A and B) and use them separately.

Here is how i try it:

1)this.pssc(this.mcd.Values[1][0]).DownTrend[0] == -1;

2)this.pssc.DownTrend(this.mcd.Values[1][0])[0] == -1


both do not compile.

Thoughts?

[NinjaTrader_PaulH]

Hello outsource,

Thanks for your reply.

I created a short video to show another way you might approach this using the condition builder directly in your strategy code: http://screencast.com/t/fgX8vTkGGh7b

[outsource]

Hello outsource,

Thanks for your reply.

I created a short video to show another way you might approach this using the condition builder directly in your strategy code: http://screencast.com/t/fgX8vTkGGh7b

Thanks for that,Paul.But it still doesn`t compile.

[outsource]

Ooopss...Sorry,just did that.

I think i got it,thanks Paul!Appreciate your help,Paul.You`ve been very helpful!

[outsource]

Hi Paul,

the thing is,even though i`ve compilled the strategy succesfully,and ran it and saw the signal markers it left on the chart,- positions hadn`t been opened.I think the indicator still doesn`t see another indicator as an input.

Any futher ideas?

Thank you

[outsource]

Just curious,why an indicator cannot be accessed directly via strategy input menu?

[NinjaTrader_PaulH]

Hello outsource,

Thanks for your replies.

Glad to hear you could compile successfully.

At this point you would want to using debugging techniques to help understand what inputs are driving what outputs. Here is a great reference: http://www.ninjatrader.com/support/f...ead.php?t=3418