var b = close(0, 1, vSym); is this syntax correct?

[waynecd]

The second parameter for close() should be a negative # per the knowledgebase yet the efs study below has a positive 1 as a second parameter and it plots. So, since close() does not compute one bar into the future, what does the second parmeter represent in:

close(0, 1, vSym); 

Thanks

Wayne

The RelativeStrengthRatio.efs script found at: http://share.esignal.com/download.js...engthRatio.efs
has "var b = close(0, 1, vSym);" in line 38.

The efs KnowledgeBase has the following for close():

close([nRelativeOffset] [, nNumBars [, Symbol ] ])

nRelativeOffset: Offset to bar. 0 is most recent bar, -1 is next bar, etc.
nNumBars: Number of bars to retrieve (a negative number)
Symbol: The symbol to retrieve data for.

Examples:

close(-1); gets the next-to-last close for the current symbol
close(0, "IBM"); gets the most recent close for IBM
close(0, -10, "INTC"); gets the last 10 closes for INTC and places them in an array

[ACM]

Re: var b = close(0, 1, vSym); is this syntax correct?

waynecd
When the NumBars parameter is set to 1 it makes no difference if the number is positive or negative because you are creating an array of 1 element ie the value at the defined bar index
Run the enclosed code and the difference between a positive or negative NumBars should be self explanatory once you check the values returned to the Formula Output Window
Alex

function main(){
    if(isLastBarOnChart()){
        debugPrintln("line3   "+close(-10,1));
        debugPrintln("line4   "+close(-10,-1));
        debugPrintln("line5   "+close(-10,2));
        debugPrintln("line6   "+close(-10,-2));
    }
} 

Originally posted by waynecd
The second parameter for close() should be a negative # per the knowledgebase yet the efs study below has a positive 1 as a second parameter and it plots. So, since close() does not compute one bar into the future, what does the second parmeter represent in:

close(0, 1, vSym); 

Thanks

Wayne

The RelativeStrengthRatio.efs script found at: http://share.esignal.com/download.js...engthRatio.efs
has "var b = close(0, 1, vSym);" in line 38.

The efs KnowledgeBase has the following for close():

[waynecd]

Alex,

I see it. Such an easy test to figure this out.

The sign (+ or -) just defines the direction in which the closes are put into the series. A positive parameter moves forward in time/bars closer to the current bar and a negative moves backwards in time/bars farther away from the current bar.

Thanks

Wayne

[ACM]

waynecd

The sign (+ or -) just defines the direction in which the closes are put into the series.

When using the close() function with the legacy syntax it actually generates an array and not a series
Alex

Originally posted by waynecd
Alex,

I see it. Such an easy test to figure this out.

The sign (+ or -) just defines the direction in which the closes are put into the series. A positive parameter moves forward in time/bars closer to the current bar and a negative moves backwards in time/bars farther away from the current bar.

Thanks

Wayne