Question about how eSignal processes..

[buzzhorton]

Here's part of my code:

debugPrint( "1 PrevDynamic_S:      " + ( Dynamic_S ) + "\n" );

PrevDynamic_R = Dynamic_R ;
PrevDynamic_S = Dynamic_S ;


debugPrint( "2 PrevDynamic_S:      " + ( Dynamic_S ) + "\n" );


var xHH = highest( iPeriods , high() ) ;  // dynamic Resistance
var xLL = lowest( iPeriods , low() ) ;  // dynamic Suport

Dynamic_R =   formatPriceNumber(xHH)*1 ;  // dynamic Resistance 
Dynamic_S =   formatPriceNumber(xLL)*1  // dynamic Suport


   
if ( Dynamic_R != high(0) && Dynamic_R < PrevDynamic_R ) {
     if ( PrevDynamic_R != 0 ) {
        Dynamic_R = PrevDynamic_R;
         }
}
    

if ( Dynamic_S != low(0) && Dynamic_S > PrevDynamic_S ) {        
    if ( PrevDynamic_S != 0 ) {
        Dynamic_S = PrevDynamic_S;
        }
}


debugPrint( "PrevDynamic_S:      " + ( Dynamic_S ) + "\n" ); 

The way I am used to things, the value of PrevDynamic_S from the last debug statement should equal the value of the first debug statement on the next bar BUT IT DOESN'T!

Can someone please explain what's going on or where my "mistake" is?

Thanks:


See below:

[DavidZ]

Here are some useful links:

from Knowledge Base

http://kb.esignalcentral.com/display/2/kb/article.asp?aid=1051&n=2&s=1

I believe JasonK explains what you need , maybe more
covers if you are using setComputeOnClose()

http://forum.esignalcentral.com/showthread.php?s=&threadid=10335&highlight=newbar

Alexis has good code sample here

http://forum.esignalcentral.com/showthread.php?s=&threadid=9415&highlight=newbar

special attention to:
if(getBarState() == BARSTATE_NEWBAR){
if(vMA1.getValue(MAStudy.MA,-1) > vMA2.getValue(MAStudy.MA,-1)){

NOTE ( -1) , specifies which bar value is being used in the comparison

=====

My thoughts FWIW, looking at your code:

In main() , your variables will change every TICK( I believe this is true for Daily bars also).
if(getBarState()==BARSTATE_NEWBAR){
' PARTS of your code '
}
--
Dynamic_S = formatPriceNumber(xLL)*1
Normally I calculate a value, then if it meets my criteria I save it to my REAL(different) variable to use/save( in the conditional IF)
--

the IF conditions for Dynamic_S & R are ABSOLUTE High/Low values - ignoring the iPeriods value

Dynamic_S can ONLY get larger , is this really what you are wanting, not the iPeriod LOW
Dynamic_R can only get smaller, not iPeriod HIGH

NOT sure of your logic here. Current value = previous value ?
--

hope this helps, Keep up your work , I like your studies.

[buzzhorton]

Thanks David.

The script is working as intended so I am not sure of your questions.

[eSignal_JasonK]

Re: Question about how eSignal processes..

Hello Avery,

All of your debug statements are printing the value of Dynamic_S. You're not printing the value of PrevDynamic_S. Therefore, when a new low occurs, your last debug statement will print the new value, which will be different than the first debug statement. If Dynamic_S is a global variable, then it is retaining the last value of the lowest() study from the previous bar. Does this help?

Originally posted by buzzhorton
Here's part of my code:

debugPrint( "1 PrevDynamic_S:      " + ( Dynamic_S ) + "\n" );

PrevDynamic_R = Dynamic_R ;
PrevDynamic_S = Dynamic_S ;


debugPrint( "2 PrevDynamic_S:      " + ( Dynamic_S ) + "\n" );


var xHH = highest( iPeriods , high() ) ;  // dynamic Resistance
var xLL = lowest( iPeriods , low() ) ;  // dynamic Suport

Dynamic_R =   formatPriceNumber(xHH)*1 ;  // dynamic Resistance 
Dynamic_S =   formatPriceNumber(xLL)*1  // dynamic Suport


   
if ( Dynamic_R != high(0) && Dynamic_R < PrevDynamic_R ) {
     if ( PrevDynamic_R != 0 ) {
        Dynamic_R = PrevDynamic_R;
         }
}
    

if ( Dynamic_S != low(0) && Dynamic_S > PrevDynamic_S ) {        
    if ( PrevDynamic_S != 0 ) {
        Dynamic_S = PrevDynamic_S;
        }
}


debugPrint( "PrevDynamic_S:      " + ( Dynamic_S ) + "\n" ); 

The way I am used to things, the value of PrevDynamic_S from the last debug statement should equal the value of the first debug statement on the next bar BUT IT DOESN'T!

Can someone please explain what's going on or where my "mistake" is?

Thanks:


See below:

[buzzhorton]

Yes, thanks, that makes it a little clearer.