Hello,

Is there a way I can use or method available to implement what is known as a volume based chart, meaning, each bar records the open, high, low and closing prices occurring within the period it took to trade some number (20K for example) of shares?

Thanks,
Ed

Hi Ed,

In Community ChartStyles we've got two volume-based chart styles: Enhanced Candlesticks and Constant Volume Bars. The latter looks like what you're looking for based on your description.

On a related note, you might find some other studies helpful if you install the Community Components library:

* Price Volume Distribution (aka Volume-by-Price)
* Price/Volume Heat Map
* UnusualVolumeOnPricePane (aka volume mountain chart)

Gracias

De nada.

You're correct that your Constant Volume Bar looks like what I'm after but the source for it is not included in the Components library, just the studies you mentioned and source is not available in Chart Styles.

Problem is I need to post the volume I want rendered at runtime and can't use a dialog. I am not looking for sensitive information so can you provide an overview of the steps needed to create my own version of the CVB?

Thanks again.

The source code behind CVB (and all the rest) is disclosed here:

Home - Community ChartStyles

Log in to the Wiki and click on the green Attachments button to download it.

Muchas Gracias

No hay de que.

Eugene,

I'm having a problem implementing a CVB app without the dialog (as mentioned above I need to pass it the volume at runtime without a dialog). Without going into the sorted details (ie C# is a single inheritance, multiple interface system and WLP is based on abstract base classes, etc), the bottom line is at this point I can't see how to do it.

I would think I would need to have both a WealthScript and ChartStyle(s) class(es) in the app. WS is needed to gather the information needed to pass to the the CS(s) but I don't see a pointer or property connecting the two. Hopefully this is clear?

Thanks in advance,
Ed

What do you mean by 'CVB app'? Could you clarify what this is?

The app is what i need to create and I am calling it a CVB app. I can't use what is provided in Community ChartStyles because that code uses a dialog to fill a threshold used in the RenderBars override.

If you're trying to drive Wealth-Lab by your external app to utilize the CVB class then please refer to this FAQ on our position of this unsupported activity: Is it possible to use Wealth-Lab or one of its Extensions as a component in custom or 3rd party application?

Otherwise if you're modifying the ChartStyle to work within WLP then you could use a text file (CSV) for passing the volume threshold to the "app". Just avoid WealthLabConfig.txt for this purpose - this might void your warranty. ;)

A text file will have to be used then, thanks.

Sorry I wasn't more clear here..

is it possible to get a 5 day volume chart, thanks

What is that? Be precise please.

it is the five-day average of daily volume

This is not related to "Volume Based Chart" so it's off topic here. You'll find how to drop an indicator (average) onto another or OHLC/Volume in the Wealth-Lab User Guide.