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make an array of series #477679
07/21/19 15:33
07/21/19 15:33
Joined: Jul 2019
Posts: 26
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maxwellreturn Offline OP
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maxwellreturn  Offline OP
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hi guys is it possible obtain something like this?
Code
vars Price = series(priceClose());
var per = 50;
  int i = optimize(0,0,2,1);
vars a[3] = {
                    series(SMA(Price,per)),
                    series(EMA(Price,per)),
                   series(TEMA(Price,per))
                    };
vars Trends1 = a[i];
if(crossOver(Price,Trends1))
enterLong;
if(crossUnder(Price,Trends1))
exitLong;


obviously it goes on error frown
thanks

Re: make an array of series [Re: maxwellreturn] #477680
07/21/19 15:45
07/21/19 15:45
Joined: Feb 2017
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AndrewAMD Online
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Did you read the error and adjust likewise?

Re: make an array of series [Re: maxwellreturn] #477683
07/21/19 16:48
07/21/19 16:48
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maxwellreturn Offline OP
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maxwellreturn  Offline OP
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yeah it give me a syntax error :
syntax error
< series(SMA(Price,per)),>.

thank you for your time andrew

Last edited by maxwellreturn; 07/21/19 16:49.
Re: make an array of series [Re: maxwellreturn] #477685
07/21/19 17:25
07/21/19 17:25
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AndrewAMD Online
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Now if you read the manual and look at the definitions of the functions SMA, EMA, and TEMA, you will learn the second argument needs to be an int rather than a var. (A var is actually a double.)

Re: make an array of series [Re: AndrewAMD] #477692
07/21/19 23:10
07/21/19 23:10
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maxwellreturn Offline OP
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maxwellreturn  Offline OP
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thank you andrew you are right i ve changed in "int per = 50" but i still get the same sintax error frown

headhache

Last edited by maxwellreturn; 07/21/19 23:19.
Re: make an array of series [Re: maxwellreturn] #477693
07/22/19 02:47
07/22/19 02:47
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AndrewAMD Online
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Now here’s the other issue:

You are optimizing to select one of three series calls in an array, but you chose to call all three series in all cases? Even if it did compile, very suboptimal.

So do this:
Declare a vars, no definition, no array.
Then based on the optimize output, use an if-then statement to determine which series call goes to the vars.

Re: make an array of series [Re: AndrewAMD] #477698
07/22/19 09:47
07/22/19 09:47
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maxwellreturn Offline OP
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maxwellreturn  Offline OP
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thank you andrew i get it in this way if it can help other forum's users
Code
	
vars Price = series(priceClose());
int per = 50;
int x = 3;
 int i = optimize(0,0,2,1);
 vars Trends1;
vars Trends2;
   if(i == 0) {
		Trends1 = series(SMA(Price,per));
		Trends2 = series(SMA(Price,per*x));
		}  
	else if(i ==	1) {
		Trends1 = series(EMA(Price,per));
		Trends2 = series(EMA(Price,per*x));
		}       
	else if(i ==	2) { 
	Trends1 = series(TEMA(Price,per));
	Trends2 = series(TEMA(Price,per*x));
	}    


but i still dont understand what im doing wrong in the previous array. I still get the syntax error and i tried various combination of ";","}", "," or blank spaces but nothing, still get the same error

Re: make an array of series [Re: maxwellreturn] #477703
07/23/19 00:59
07/23/19 00:59
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AndrewAMD Online
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Originally Posted by maxwellreturn
but i still dont understand what im doing wrong in the previous array. I still get the syntax error and i tried various combination of ";","}", "," or blank spaces but nothing, still get the same error
This is probably a limitation of Lite-C. I don't think you can initialize an array with functions upon declaration.

Re: make an array of series [Re: maxwellreturn] #477705
07/23/19 07:22
07/23/19 07:22
Joined: Jul 2000
Posts: 27,212
Frankfurt
jcl Offline

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jcl  Offline

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That's right. Arrays are initialized with constants, not with functions.


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