Index Tracking

[futurenets]

tracking previous bar indexes (e.g. when re-drawing trendlines) can be difficult due to bar re-numbering (... -3, -2, -1, 0).

this could be made easier with something like:

getAbsoluteBarIndex()

whose returned values were ... -3 -2 -1 0 +1 +2 +3 ...

0 would be the last bar on the chart at study loadtime. Each arriving bar would then be assigned a +ve incrementing value.

This would allow index values to be stored/referenced knowing they won't change.

[JayF]

futurenets,

One way to do somthing similar is...

var vBarCount = 0;

function main() {

if (getBarState() == BARSTATE_NEWBAR) vBarCount++;

...

} 

vBarCount will always be a static number increasing from 0 (oldest bar) to the current bar.

[futurenets]

Index tracking

Thanks Jay

I was using:

if (getBarState() == BARSTATE_NEWBAR && vOSFlag == true) vOS += 1;
if (vOSFlag == false && getCurrentBarIndex() == 0) vOSFlag = true;
vBarNow = getCurrentBarIndex() + vOS; // ... -3 -2 -1 0 +1 +2 +3 ...

it would just be nice to forget this and have a function to do the same.

[eSignal_JasonK]

Hello Futurenets,

Please give us a detailed example of what you are trying to accomplish. We may be able to give you some other options to consider that may simplify your efforts.

Thanks,

[futurenets]

Index Tracking

thanks Jason. all is working well now. we discussed the solution earlier via email.