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Writing scan in tradestation


Discussion in EasyLanguage Programming

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Writing scan in tradestation

  #1 (permalink)
newmoney87
st.louis missouri united stated
 
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Hello All,
im new to the forums and to trading, I use Tradestation and im looking to write a scan, ive included photos of what i want the scan to accomplish and a brief explanation, i was wondering if someone could help me out with this idea, as i have no programming experience at all and am new to easy language....

In preparation for the next buying opportunity,




1. A stock touched its upper Autoenvelope within the past 26 bars
2. That stock is now under its 26-bar EMA OR has been under it within past bar


PS: the chart above in FMC weekly

PPS: the autoenvolope is part of and indicator package that i purchased from Dr. Alexander Elder

thanks in advanced

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  #3 (permalink)
 ABCTG   is a Vendor
 
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newmoney87,

the first thing that you need to make sure is that you can either access the code for the Autoenvelope or have a function (that can be closed code) that makes those values accessible. Otherwise you wouldn't be able to use the
value for the Autoenvelope within your code.

Regards,

ABCTG

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  #4 (permalink)
newmoney87
st.louis missouri united stated
 
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@ABCTG how would i go about finding out if i have access to the code?

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  #5 (permalink)
 ABCTG   is a Vendor
 
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newmoney87,

you can look at the code in the Development Environment directly. Another approach is when you have the indicator applied to a chart, go to "Format" -> "Analysis Techniques", highlight the particular indicator and click on "Edit EasyLanguage". This will open up this indicator in the Development Environment directly.

Regards,

ABCTG

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  #6 (permalink)
newmoney87
st.louis missouri united stated
 
Posts: 4 since Feb 2017
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ok i see it i can edit the easy language of the autoenvolope

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  #7 (permalink)
 ABCTG   is a Vendor
 
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newmoney87,

there is a bit of a problem here as I don't know how the indicator operates and what the variables are named. As it's probably copyrighted material, I wouldn't suggest posting it.

What you will have to do is along the line of this:

Check if the Low of the current bar is below the EMA. I suspect you are referring to an EMA with length 26, as the EMA doesn't use bars for the length like a simple average for example.

Within the below check of Low < myEMA, that would check for the Low of the current bar being lower than the EMA, I'd suggest to create a loop and cycle through the last 26 values for the upper Autoenvelope and check if a High of that bar touches that value.
You can check previous bars values of a reserved word or variable via brackets - High[1] is the high from 1 bar ago etc..
If you find a touch, you have a valid signal and can plot this on the chart as a dot for example.

 
Code
Variables:
double myEMA ( 0 );

myEMA = XAverage( Close, 26 );

//low of the bar is under the EMA
if Low < myEMA then
begin
//the loop would be in here

end ;
Regards,

ABCTG

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  #8 (permalink)
newmoney87
st.louis missouri united stated
 
Posts: 4 since Feb 2017
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ABCTG,
im not sure what you mean by loop?, and i can pm the autoenvlope to u well what i see wen i hit edit easy language, i speak to Dr Elder regularly, i asked him about it he's cool with me showing you that part if your willing to look at it for me.

thank you !

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  #9 (permalink)
 ABCTG   is a Vendor
 
Posts: 2,431 since Apr 2013
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newmoney87,

I would suggest to take a look at the EasyLanguage Essentials guide. It will cover all the basics you need to know to write the code based on the idea I outlined below.

Regards,

ABCTG

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Last Updated on February 22, 2017


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