Bid Ask Size Plot on Advanced Chart

[eSignal_JasonK]

Hello laocoon,

Using BidAskAnalysis.efs, if you go into Edit Studies and select the "Relative Percent" option for the Study Output parameter (second from top) you should get the result you are looking for.

[laocoon]

great, that does it....thanks a lot

Cheers

[laocoon]

Hi JasonK

I'm using the BidAskVolume.efs study and it works perfectly. I'd like however to enhance it a little by having the AskVol, InsideVol and BidVol figures in absolute numbers AND in percent of total volume displayed next to each other IN THE CURSOR WINDOW. Is that possible?

Thanks a lot.

[eSignal_JasonK]

Hello laocoon,

This can be accomplished using the BidAskAnalysis.efs study.

1. Apply the formula to an Advanced chart twice.
2. Go to Edit Studies and set one of them to Relative Percent for the Study Output parameter. Also, set the Display parameters to No for all four outputs.
3. Set the display options for the same study (bottom of Study Properties window) to No Display and No Scale.
4. Click OK and close the Study Properties window.
5. While holding down the shift key, click and drag the study over the other BidAskAnalysis study.

You should see the following result.

[laocoon]

great, that does it...thanks a lot for your quick answer.

Regards

[probtrader]

Jason, there is something I'm not clear with about BidAskAnalysis.efs: I thought the EFS main() function was triggered only at the end of each bar plotted on the chart, that is at the end of each chart period (every 1 minute, 5 minutes...).

Is it main() triggered after each sale instead?

The difference is important because in the first case we would have an histogram of only the last bid/ask/inside transactions for each period.

[eSignal_JasonK]

Hello probtrader,

The main() function will be executed on every trade when processing real time data. An EFS can be configured to compute only on the close of a bar in two ways. setComputeOnClose() can be added to the preMain() function, or the Formula Engine Settings (Tools-->EFS-->Settings) can have the "Make all formulas compute on close (rather that tick-by-tick)" option turned on.

If you are only seeing one execution per bar for this formula, you may have the global compute on close option checked in the Formula Engine Settings.

[commanderco]

BidAskAnalysis History

Just checking to see if there is any way of holding the history of the BidAskAnalysis