[dpdez]

Hello All,
If anyone can shed some light on this little obstacle, I would be appreciative...

I am using a custom indicator based on the John Ehlers' sine wave. It essentially prints plot points on a chart representing support and resistance areas.

I am trying to write a strategy that essentially buys at open when support points have been plotted underneath - see graphic attached [The plot line 'Support' is printed at price 1113.50]

What is the specific syntax in EasyLanguage to reference an indicator's Plot points or its inputs?

I currently have:

If Price >= _BetterSineWave "Support" then...

However, EL requires a true/false expression where "Support" is typed.

Any ideas?

[Tams]

Originally Posted by dpdez »

Hello All,
If anyone can shed some light on this little obstacle, I would be appreciative...

I am using a custom indicator based on the John Ehlers' sine wave. It essentially prints plot points on a chart representing support and resistance areas.

I am trying to write a strategy that essentially buys at open when support points have been plotted underneath - see graphic attached [The plot line 'Support' is printed at price 1113.50]

What is the specific syntax in EasyLanguage to reference an indicator's Plot points or its inputs?

I currently have:

If Price >= _BetterSineWave "Support" then...

However, EL requires a true/false expression where "Support" is typed.

Any ideas?

don't spin your wheels
go get the ebook... getting started with EasyLanguage
go through the examples, everything you need is there.


ps. your question is too vague. I can see what you are trying to accomplish, but you have to give more info (eg code snippets).

[Tradewinds]

Originally Posted by dpdez »

What is the specific syntax in EasyLanguage to reference an indicator's Plot points or its inputs?

EL can call functions. If you open up EasyLanguage, and load a strategy, there are built in strategies for reference. Here is an example of one:

inputs:
	BollingerPrice( Close ),
	TestPriceLBand( Close ), { cross of this price over LowerBand triggers placement
	 of stop order at LowerBand }
	Length( 20 ),
	NumDevsDn( 2 ) ;

variables:
	LowerBand( 0 ) ;

LowerBand = BollingerBand( BollingerPrice, Length, -NumDevsDn ) ;

if CurrentBar > 1 and TestPriceLBand crosses over LowerBand then
{ CB > 1 check used to avoid spurious cross confirmation at CB = 1 }
	Buy ( "BBandLE" ) next bar at LowerBand stop ;
	{ ie, don't buy if next bar completely below current LowerBand, but wait for next 
	  crossing condition - an example of a non-persistent setup triggering a stop
	  order that is replaced until hit }


{ ** Copyright (c) 2001 - 2010 tradestation Technologies, Inc. All rights reserved. ** 
  ** tradestation reserves the right to modify or overwrite this strategy component 
     with each release. ** }

Notice this line:

LowerBand = BollingerBand( BollingerPrice, Length, -NumDevsDn ) ;

BollingerBand is a function. If the code you need to reference is now saved as an indicator, you may need to put the code into a function, and configure it as a function. Either that, or duplicate the code in the strategy.

var: Support(0);

Support = _BetterSineWave(Price, Length);

If Price >= Support then Buy("Buy Support") next bar at open ;